7X - 11 = - 19 + 3X
subtract 3X from both sides
4X - 11 = - 19
add 11 to both sides
4X = - 8
divide both sides integers by 4
X = - 2
=====----------- check in original equation
7(- 2) - 11 = - 19 + 3(- 2)
- 14 - 11 = - 19 - 6
- 25 = - 25
==========checks
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