CPM Homework Help : PCT Problem 4-91

Solve for $x$ : $a^2x + b^2 x + 7 = 3c$

Step 1:

Isolate the $x$ on the left side by subtracting $7$ from both sides.

Step 2:

Factor out an ' $x$ ' on the left side.

Step 3:

Divide both sides by $x$ 's factor solving for $x$ .

Answer 1:

$a^2x + b^2x = 3c − 7$

Answer 2:

$x(a^2 + b^2) = 3c − 7$

Answer 3:

$x=\frac{3c-7}{(a^2+b^2)}$