Answer:
x = - 5
Step-by-step explanation:
Given
[tex]\frac{2x+3}{7}[/tex] = 2x + 3², that is
[tex]\frac{2x+3}{7}[/tex] = 2x + 9 ( multiply both sides by 7 )
2x + 3 = 7(2x + 9) ← distribute
2x + 3 = 14x + 63 ( subtract 2x from both sides )
3 = 12x + 63 ( subtract 63 from both sides )
- 60 = 12x ( divide both sides by 12 )
- 5 = x ⇒ x = - 5
