Grade 7 · Math
Solve two-step equations practice
Undo addition and multiplication to isolate a variable.
Opening your practice adventure…
Try a sample
Solve for x: 12x + 8 = 20.
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See the answer & why
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Subtract 8 to get 12x = 12. Divide by 12: x = 1.
A little hint: Undo addition first, then multiplication, on both sides.
A teaching tip
Apply the same inverse operation to both sides.