Mathematical ReasoningPregunta 34 de 120

Solve for x: 3x + 7 = 22.

a.3

b.5

c.7

d.15

Explicación

Subtract 7 from both sides to get 3x = 15, then divide by 3 to find x = 5. Isolating the variable step by step solves a linear equation. Checking: 3(5) + 7 = 22, which is correct.

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