5 August, 04:50
Solve the equation. 9 = - x + 8
5 August, 06:09
x = - 1
9 = - x + 8 (subtract 8 from both sides)
1 = - x (multiply both sides by - 1)
- 1 = x ⇒ x = - 1
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» Solve the equation. 9 = - x + 8