Question

3x = 6x +10
2x-3+4 (3 - x) = 2x + 30
5x + 2 = -10
3(2x + 4) - x + 2 = 3x + 2​

Answer 1

$3x = 6x + 10 \\ 3x - 6x = 10 \\ - 3x = 10 \\ x = 10 \div ( - 3) \\ x = - \frac{10}{3}$

$2x - 3 + 4(3 - x) = 2x + 30 \\ 2x - 3 + 12 - 4x = 2x + 30 \\ - 2x + 9 = 2x + 30 \\ - 2x - 2x = 30 - 9 \\ - 4x = 21 \\ x = 21 \div ( - 4) \\ x = - \frac{21}{4}$

$5x + 2 = - 10 \\ 5x = - 10 - 2 \\ 5x = - 12 \\ x = - 12 \div 5 \\ x = - \frac{12}{5}$

$3(2x + 4) - x + 2 = 3x + 2 \\ 6x + 12 - x + 2 = 3x + 2 \\ 5x + 14 = 3x + 2 \\ 5x - 3x = 2 - 14 \\ 2x = - 12 \\ x = - 12 \div 2 \\ x = - 6$