Ask
your own question, for FREE!
Mathematics
OpenStudy (anonymous):
If x - 3 = 12, then what is the value of x - 3 + 3? Why? (
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
The value of x - 3 + 3 is 15. If you solve for x in the first equation you get 15. The subtracting and adding of three in the second cancels out so you are left with just 15.
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
hayleed:
in 800, charlemagne accepted the pope's offer to be crowned holy roman emperor. this act had the practical effect of a.
Gucchi:
Object E has a mass of 4,800 kilograms. Object F has a mass of 600 kilograms. The weight of Object F will be ________ times the weight of Object E if both o
prettygirl09:
i dont know wat this is but look closly its agirl starring at ze moon..... but te
Gucchi:
Read the list of substances below: Rubber, Steel, Glass, Iron Which substances ar
Gucchi:
In a chemical reaction, 36 grams of hydrochloric acid reacts with 40 grams of sodium hydroxide to produce sodium chloride and water.
Gucchi:
Which state of matter has particles that slide past each other while remaining in
Gucchi:
Which of the following is true about the mass of an object? It decreases if weight increases.
Gucchi:
A group of students is investigating how the addition of salt impacts the floatation of an egg in water.
hayleed:
Which of the following was an effect of the Crusades on Jews? A. Jewish villages also became targets of the Crusaders.
Gucchi:
An electrician cuts a 10-meter-long copper wire having a density 8.9 g/cm3 into 10 equal parts.
hayleed:
in 800, charlemagne accepted the pope's offer to be crowned holy roman emperor. this act had the practical effect of a.
3 hours ago
0 Replies
0 Medals
Gucchi:
Object E has a mass of 4,800 kilograms. Object F has a mass of 600 kilograms. The weight of Object F will be ________ times the weight of Object E if both o
6 hours ago
5 Replies
1 Medal
prettygirl09:
i dont know wat this is but look closly its agirl starring at ze moon..... but te
2 hours ago
5 Replies
1 Medal
Gucchi:
Read the list of substances below: Rubber, Steel, Glass, Iron Which substances ar
6 hours ago
7 Replies
1 Medal
Gucchi:
In a chemical reaction, 36 grams of hydrochloric acid reacts with 40 grams of sodium hydroxide to produce sodium chloride and water.
6 hours ago
5 Replies
1 Medal
Gucchi:
Which state of matter has particles that slide past each other while remaining in
6 hours ago
5 Replies
1 Medal
Gucchi:
Which of the following is true about the mass of an object? It decreases if weight increases.
6 hours ago
6 Replies
1 Medal
Gucchi:
A group of students is investigating how the addition of salt impacts the floatation of an egg in water.
6 hours ago
5 Replies
1 Medal
hayleed:
Which of the following was an effect of the Crusades on Jews? A. Jewish villages also became targets of the Crusaders.
6 hours ago
0 Replies
0 Medals
Gucchi:
An electrician cuts a 10-meter-long copper wire having a density 8.9 g/cm3 into 10 equal parts.
6 hours ago
5 Replies
1 Medal