Question

Solve the following equation and crosscheck your answer 3(x-5)+7=13

Answer 1

Answer:

$x = 7$

Step-by-step explanation:

Given equation = $3(x-5) + 7 = 13$

⇒$3(x-5) = 13 - 7$

⇒$3(x-5) = 6$

⇒$3x - 15 = 6$

⇒$3x = 6 + 15$

⇒$3x = 21$

⇒$x = \frac{21}{3}$

⇒$x = 7$

Cross-checking the answer:

We put the value of x obtained in the equation.

⇒ $3(7 - 5) + 7 = 13$

⇒ $3(2) + 7 = 13$

⇒ $6 + 7 = 13$

⇒ $13 = 13$

⇒ $L.H.S = R.H.S$

Therefore,$x = 7$  is the answer