Question

Solve x − 7y = 8 for x.

x = −7y + 8
x = −7y − 8
x = 7y − 8
x = 7y + 8

Answer 1

To solve the equation

�

−

7

�

=

8

x−7y=8 for

�

x, you need to isolate

�

x on one side of the equation. Here's how you can do it:

�

−

7

�

=

8

x−7y=8

First, add

7

�

7y to both sides of the equation to move the term with

7

�

7y to the right side:

�

−

7

�

+

7

�

=

8

+

7

�

x−7y+7y=8+7y

Simplifying the left side, you get:

�

=

8

+

7

�

x=8+7y

So, the solution is:

�

=

8

+

7

�

x=8+7y