Question

0.3x =2.1 how would i solve this

Answer 1

Divide by 0.3 on both sides to find x

Answer 2

`0.3x = 2.1\\\\\implies 10* 0.3x = 10 * 2.1~~~~;[\text{Multiply both sides by 10}]\\\\\implies 3x = 21\\\\\implies x = \frac{21}3 = 7`