Question

Решите уравнение: модуль 7+2х=43

Answer 1

$|7+2x|=43 \ left[begin{array}{ccc}7+2x=43\7+2x=-43end{array}rightto left[begin{array}{ccc}2x=36\ 2x=-50end{array}rightto left[begin{array}{ccc}x=18\x=-25end{array}right$

Answer 2

7 + 2x = 43
2x = 36
x  = 18
7 + 2x = -43
2x = -50
x = -25