Question

solve each equation and show all work
1. 5x+7=3x+21
2. 3x-2(5-x)=3(x-10)+3
3. 5(x+1)=3(2x+3)+5

Answer 1

Line up everything that matches. like variables.

Answer 2

So for #1 5x+7=3x+21 so what would you do?

Answer 3

subtract 3x from both sides?

Answer 4

Correct!

Answer 5

Correct you want to get rid of one of the x's. So you would get 2x+7=21 What do you do next?

Answer 6

subtract 7 from both sides

Answer 7

Subtract 7 from both sides you get 14 so it would be 2x=14 divide both sides by 2 and you get x=7! Now do the rest :)

Answer 8

Hint: parentheses first always remember that.

Answer 9

how would i start the ones in the parentheses

Answer 10

3x-2(5-x)=3(x-10)+3 Distribute. -2times 5 and -2 times x you would also do 3 times x and 3 times -10 your equation should be
3x-10-2x=3x-30+3

Answer 11

so do you get rid of the 3x first

Answer 12

No the -2x so add 2x to the first 3x you get 5x-10=3x-30+3 then subtract 3x so you get 2x-10=-30+3 Subtract 3 you get 2x-13+-30 add 30 you get 2x=20 divide by 2 you get x=10 :)

Answer 13

#3 answer is -9

Answer 14

how did you get -9

Answer 15

which one are you doing rn?

Answer 16

@kiki345

Answer 17

# 3

Answer 18

alright

Answer 19

\( 5(x+1)=3(2x+3)+5\)

open the brackets

\(5(x)+5(1)=3(2x)+3(3)+5\)

\(5x+5=6x+9+5\)

\(-1x=9\)

\(x=-9\)

Answer 20

thank you @ILovePuppiesLol

Answer 21

I can

Answer 22

-2(6-2x)=4(-3+x)

Answer 23

−2(6−2x)=4(−3+x)
Step 1: Simplify both sides of the equation.
−2(6−2x)=4(−3+x)
Simplify: (Show steps)
4x−12=4x−12
Step 2: Subtract 4x from both sides.
4x−12−4x=4x−12−4x
−12=−12
Step 3: Add 12 to both sides.
−12+12=−12+12
0=0

Answer 24

thank you and i have one more 5-1(2x+3)=-2(4+x)

Answer 25

5−1(2x+3)=−2(4+x)
Step 1: Simplify both sides of the equation.
5−1(2x+3)=−2(4+x)
Simplify: (Show steps)
−2x+2=−2x−8
Step 2: Add 2x to both sides.
−2x+2+2x=−2x−8+2x
2=−8
Step 3: Subtract 2 from both sides.
2−2=−8−2
0=−10

Answer 26

thanks