Question

What would the first step be in solving the equation 4/7x = 21

Answer 1

❄ Hi there,

the first step in solving this inequality is

• multiplying (both sides) by 7

`\sf{(4)/(7)x*7=21*7}`. Look what happens on the left side!

`\sf{4x=147}`

Multiplying both sides of an equation, or inequality, by the fraction's denominator, is a nice little trick when you need to get rid of fractions to solve in terms of a variable.

Finish solving for x by dividing both sides by 4 –

`\sf{x=(147)/(4)}`

❄