Question

solve,
7-3(2x-1)=40

Answer 1

Use Distributive Property....

Answer 2

First, distribute the -7 by what is inside the parentheses to get rid of the parentheses.
Remember that when you multiply a negative number by what is inside the parentheses, all the signs inside will change.

Answer 3

i don't understand where the -7 came from?

Answer 4

i got -5 as x

Answer 5

Sorry. Distribute the -3.

Answer 6

my mistake

Answer 7

so is it -5=x?

Answer 8

X=-5

Answer 9

Since I made a mistake above and confused you, I'm going to explain it step by step now.
7-3(2x-1)=40
First step is to get rid of the parentheses you need to distribute the -3:
7 - 6x + 3 = 40
Now add 7 and 3 on the left side
10 - 6x = 40
Now subtract 10 from both sides
-6x = 30
Divide both sides by -6
x = -5
You are correct, answer is x = -5