Year 9 maths · I.3 · Equations in one variable
Equations with parentheses and variables on both sides
Distribute first, then collect the x terms on one side.
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Solve for x: −3(x + 3) = −2x − 15
Answer: 6
Solve for x: −3(x − 4) = −2x + 9
Answer: 3
Solve for x: 2(x − 1) = 4x − 12
Answer: 5
Tip: Distribute first, then collect the x terms on one side.
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