Question

Select the property of equality used to arrive at the conclusion. if 1/3 x=5 then x=15 the multiplication property of equality the addition property of equality the subtraction property of equality

Answer 1

If we take both sides of the equation $\frac{1}{3} x=5$ and multiply either expression by 3, the equality becomes

$3\cdot\frac{1}{3}x=3\cdot5\\x=15$

Multiplication of both sides of an equality by the same number keeps the equality true, and we call this property the multiplication property of equality.