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What is the solution to this equation 7x-2(x-10)=40 A.x=10 B.x=6 C.x=4 D.x=12
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4 votes
What is the solution to this equation 7x-2(x-10)=40

A.x=10
B.x=6
C.x=4
D.x=12

User Thomas Stock
by
7.9k points

2 Answers

6 votes
x=4



............................
User Evinje
by
8.5k points
1 vote
Hey there! :D

7x-2(x-10)=40

Distribute the -2.

-2*x= -2x

-2*-10=20

7x-2x+20=40

5x+20=40

Subtract 20 on both sides.

5x=20

Divide by 5 into both sides.

x=4

I hope this helps!
~kaikers
User Dave Huang
by
8.3k points
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