To solve the equation $-3x=12$−3x=12, you would first need to divide both sides by what number?

To solve the equation $\frac{1}{4}x=8$14x=8, you would first need to multiply both sides by what number?

Solve: $x-4=10$x−4=10

Solve the following equation:

$5x-8=2$5x−8=2

Solve first-degree equations involving one variable, including equations with fractional coefficients