How do you solve 3x + 7 = 22?

Feb 25, 2016

x = 5

Explanation:

Isolate the x term on the left side and move numbers to the right

subtract 7 from both sides : 3x + 7 - 7 = 22 - 7

now have : 3x = 15 , and dividing both sides by 3, will give value of x.

$\frac{\cancel{3} x}{\cancel{3}} = \frac{15}{3} \Rightarrow x = 5$