Question

1. $5 + 5x = 3x + 7$

Explanation:

Step1: Subtract $3x$ from both sides

$5 + 5x - 3x = 3x + 7 - 3x$
$5 + 2x = 7$

Step2: Subtract 5 from both sides

$5 + 2x - 5 = 7 - 5$
$2x = 2$

Step3: Divide by 2 on both sides

$\frac{2x}{2} = \frac{2}{2}$
$x = 1$

Answer:

$x = 1$