Question

помогите пожалуйста срочно надо

Answer 1

$1) 3x + 4 = 7x - 8 \ 3x +47 - 8 \ 50x - 8 \ 2(25x - 4) \ \ 2) 2x - 3 = 10 \ 2x = 10 + 3 \ 2x = 13 \ x = frac{13}{2}$
$3) 2(x + 1) = 3(x + 1) \ 2(x + 1) - 3(x + 1) = 0 \ (2 - 3) times (x + 1) = 0 \ - 1(x + 1) = 0 \ x + 1 = 0 \ x = - 1$
$4)3x - 5 = 3 + 3x \ - 5 = 3$