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Solve the equation 3x = 24 for x.

A 8

To isolate the unknown value x, we divide both sides of the equation by 3.
On the left, dividing by 3 “undoes” the effect of multiplying by 3 and returns to x. On the right, $5172_w82_h13.png$. x=8
To check, substitute the solution 8 into the original equation.
Original equation: 3x = 24
Substitute 8 for x: 3(8)=24
Simplify both sides: 24=24