7/x = 2/12, Solve for x

Solve 7/x = 2/12

How to solve 7/x = 2/12? Get the answer and stepwise instruction to solve linear equation in one variable 𝒙.

We have 7/x = 2/12

Cross multiplying the ratios, gives

7 × 12 = 2x

or, 2x = 7 × 12

Divide both sides by 2, which is the coefficient of x
Note: if a = b, then a ÷ c = b ÷ c

Therefore, 2x/2 = 7 × 12/2

x = 84/2

To simplify, divide both numerator and denominator by 2, which is the GCF of 84 and 2:

x = 42/1 or, x = 42