Question

Please Help!

Which inverse operation do you perform first when solving the equation 12=10−3x

12 = 10 − 3 x?

Which inverse operation do you perform last when solving the equation 35x−12=18

3/5x − 12 = 18?

Answer 1

First Operation Performed - Subtract 10
$12 = 10 - 3x \\ (12 - 10) = (10 - 10) - 3x$

Last Operation - Divide by 3
$\frac{3}{5}x - 12 = 18 \\ \frac{3}{5} x = 30 \\ \frac{3x}{5} = 30 \\ 3x = 150 \\ x = \frac{150}{3}$