MathematicsPregunta 32 de 120
Solve for x: 3x + 7 = 22.
a.5
b.7
c.9
d.15
Explicación
Subtract 7 from both sides: 3x = 15. Then divide both sides by 3: x = 5. Substituting back, 3(5) + 7 = 22 confirms the answer.
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