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Mathematics 7 Online
OpenStudy (anonymous):

hey who is good with Equations with Mixed Operations i really need help

OpenStudy (anonymous):

what's your question?

OpenStudy (anonymous):

What is the solution to the equation? 8x + 4 = –20 @tHe_FiZiCx99

OpenStudy (the_fizicx99):

subtract 4 from both sides and divide both sides by 8 to isolate x

OpenStudy (anonymous):

subtract 4 from each side to get your constants on one side and your variables on the other

OpenStudy (anonymous):

8x + 4 = –20 8x + 4 -4 = –20 -4 8x + 0 = -20-4 8x = -24 8x/8 = -24/8

OpenStudy (anonymous):

What is the solution to the equation? 2- 2/3=12 @tHe_FiZiCx99

OpenStudy (the_fizicx99):

Wheres the variable to divide by.. you said mixed operations?

OpenStudy (anonymous):

2- Z/3=12

OpenStudy (the_fizicx99):

subtract 2 from both sides, then multiply both sides by 3 to isolate z

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

-30

OpenStudy (the_fizicx99):

Yesh

OpenStudy (anonymous):

3q=5=-2q+20

OpenStudy (the_fizicx99):

What do you think you do first?

OpenStudy (anonymous):

subtract 3 from each side

OpenStudy (the_fizicx99):

Why..? You want to leave the variable alone to divide. You would add 2q to 3q and subtract 5 to 20

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