Question

solve 5(2 x +7) = 2(3×+15)+25 and find the value of x​

Answer 1

$5(2x + 7) = 2(3x + 15) + 25 \\ \\ ∴ 10x + 35 = 6x + 30 + 25 \\ \\ ∴ 10x + 35 = 6x + 55 \\ \\ ∴ 10x - 6x + 35 = 55 \\ \\ ∴ 4x + 35 = 55 \\ \\ ∴ 4x = 55 - 35 \\ \\ ∴ 4x = 20 \\ \\ ∴ x = \frac{20}{4} \\ \\ ∴\green{\boxed{ x = 5}}$