Question

Evaluate x if, 36x = 78^2 - 42^2.

Answer 1

36 x = 78^2 - 42^2

x = (78^2 - 42^2) ÷ 36

= (6084 -1764) ÷ 36

= 4320 ÷ 36

= 120

Answer 2

120 is the right answer.....