1. Solving Multi-Step Equations
COURSE 3 LESSON 2-4
Solve 9 + 2p = –3 – 4p.
9 + 2p = –3 – 4p
9 + 2p + 4p = –3 – 4p + 4p Add 4p to each side.
9 + 6p = –3 Combine like terms.
9 – 9 + 6p = –3 – 9 Subtract 9 from each side.
6p = –12 Simplify.
Divide each side by 6. 6p 6
–12 =
p = –2 Simplify.
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2. Solving Multi-Step Equations
COURSE 3 LESSON 2-4
(continued)
Check p = –3 – 4p
9 + 2(–2) –3 – 4(–2) Substitute –2 for p.
5 = 5 The solution checks.
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3. Solving Multi-Step Equations
COURSE 3 LESSON 2-4
Solve 3(k – 8) = –k.
3(k – 8) = –k
3k – 3k – 24 = –k – 3k Subtract 3k from each side.
3k – 24 = –k Use the Distributive Property.
–24 = –4k Combine like terms.
Divide each side by –4.
–24 –4 =
–4k
6 = k Simplify.
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4. Solving Multi-Step Equations
COURSE 3 LESSON 2-4
(continued)
Check 3(k – 8) = –k
3(6 – 8) –6 Substitute 6 for k.
–6 = –6 The solution checks.
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5. Solving Multi-Step Equations
COURSE 3 LESSON 2-4
1. Solve 4(3u –1) = Solve 5t – 4 = t – 8. 2 –1
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