2.14x - 12.18 = -5.76
Add 12.18 to both sides of the equation.
2.14x - 12.18+12.18 = -5.76+12,18
2.14x = 6.42
Divide both sides of the equation by 2.14
2.14x/2.14 = 6.42/2.14
x= 3
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