Question

помогите пожалуйста решать номеры 1010, 1011, 1012, 1013, 1014, 1015.​

Answer 1

$1)5x - 5 + 7 = 3x + 3 + 1 \\ 5x - 3x = 3 + 1 + 5 - 7 \\ 2x = 2 \\ x = 2 \div 2 \\ x = 1 \\ 2)2x + 2 + 3 = 3x - 3 + 6 \\ 2x - 3x = - 3 + 6 - 2 - 3 \\ - x = - 2 \\ x = 2 \\ 3)9x + 15 - 12x + 20 \\ 9x - 12x + 15 + 20 \\ - 3x = - 15 - 20 \\ - 3x = - 35 \\ x = \frac{35}{3} \\ 4)35 - 7x + 2 = 30 - 5x + 1 \\ - 7x + 5x = 30 + 1 - 35 - 2 \\ - 2x = - 6 \\ x = - 6 \div - 2 \\ x = 3$