Solve for x: x + 19 = 35.

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Multiple Choice

Solve for x: x + 19 = 35.

Explanation:
Undoing the operation on x is the idea here. Since x is being added to 19, you isolate x by subtracting 19 from both sides. That gives x = 35 − 19, which equals 16. If you check your work by substituting, 16 + 19 indeed equals 35, so it fits perfectly. The other options wouldn’t make the left side total 35 when you add 19, so they wouldn’t satisfy the equation.

Undoing the operation on x is the idea here. Since x is being added to 19, you isolate x by subtracting 19 from both sides. That gives x = 35 − 19, which equals 16. If you check your work by substituting, 16 + 19 indeed equals 35, so it fits perfectly. The other options wouldn’t make the left side total 35 when you add 19, so they wouldn’t satisfy the equation.

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