Mrs.D Math · 7th Grade

EQUATION
LAB

Two-Step Equations & Like Terms
⚡ Two-Step Equations
🔗 Combine Like Terms
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📡 The Rules

⚡ Two-Step Equations

1
Undo the addition or subtraction — add or subtract the same value on both sides to isolate the variable term.
3x + 5 = 17  →  3x = 12
2
Undo the multiplication — divide both sides by the coefficient to solve for x.
3x = 12  →  x = 4

🔗 Combine Like Terms

Like terms share the same variable. Only combine terms that match!

→
Example:   4x + 2x − 3 + 7
(4+2)x + (7−3) = 6x + 4
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QUESTION 1 / 10
EQUATION
Solve for x
?
x =
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Equations solved!

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