Question

Solve for x:
9x - 3 - 8x = 7 - x
x= -7
B. x=-2
c. x = 4
D. x = 5

Answer 1

Answer:

x = 5

Step-by-step explanation:

$9x - 3 - 8x = 7 - x\\x - 3 = 7 - x$

Move x's to one side, and numbers to the other.

Make it the opposite sign when you move it over. Since I'm subtracting 3, I'm going to add it to the other side, and add x. And then divide by 2 to solve for x

$x + x = 7 + 3\\\\\frac{2x}{2} = \frac{10}{2}\\\\x = 5$