Question

The solution of the equation 2x + 9 = 7 is:​

Answer 1

Solution ↓

→ 2x + 9 = 7

→ 2x = 7 - 9 [+9 will become -9]

→ 2x = -2

→ x = $\frac{-2}{2}$

→ x = -1

Therefore, we have found that x = -1

Check ↓

» 2x + 9 = 7

» 2(-1) + 9 = 7

» -2 + 9 = 7 [- and + will subtract]

» 7 = 7

Therefore, our answer is correct.

Hope it will help you.