Question

how do i solve 2/7 = x/-3 using the multiplication principle

Answer 1

The multiplication principle is "multiplication"?

\(\dfrac{2}{7} = \dfrac{x}{-3}\)

Multiply by 7

\(7\cdot\dfrac{2}{7} = 7\cdot\dfrac{x}{-3}\)

Simplify

\(2 = 7\cdot\dfrac{x}{-3}\)

Multiply by -3

\(-3*2 = -3*7\cdot\dfrac{x}{-3}\)

Simplify

\(-6 = 7\cdot x\)

Yeah! Multiplication still works!!! We don't need another principle for that.