Answer:
x = 4
Explanation:
5[3(x + 4) - 2(1 - x)] - x - 25 = 14x + 65
Distribute by 3 and 2 inside the square bracket
5 [ 3x + 12 - 2 + 2x ] - x - 25 = 14x + 65
collect like terms inside the square bracket
5 (5x + 10) - x - 25 = 14x + 65 ← distribute the parenthesis by 5
25x + 50 - x - 25 = 14x + 65 ← collect like terms on left side
24x + 25 = 14x + 65 ( subtract 14x from both sides )
10x + 25 = 65 ( subtract 25 from both sides )
10x = 40 ( divide both sides by 10 )
x = 4