Answers

2016-04-25T01:30:22+05:30
U use bodmas the mathematical rule
0
2016-04-25T01:42:20+05:30
7x = 3x(x-4)
7x = 3x² - 12x
7x + 12x = 3x²
19x = 3x²
19 ÷ 3 = x² ÷ x
19/3 = x

so value of x is 19/3
0