Algebra I: Section 3
CC MATH I STANDARDS UNIT 3
4.5 SOLVING MULTI-STEP EQUATIONS: PART 1
WARM UP: Solve for the given variable.
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REVIEW OF SIMPLIFYING EXPRESSIONS
COMPLETE THIS SECTION AFTER QUIZ IS COMPLETED
1) 3a + 7b + 5a – 4b
2) 9(2x – 8)
3) 15 – 4 (6n + 3)
4) – 6(– 3 – 8b)
5) 12x – 5 – 7x – 2
6) 7(8 + 4z) – 15z
HOW TO SOLVE MULTI-STEP EQUATIONS
1) SIMPLIFY ALL EXPRESSIONS (Distribute, Combine Like Terms, Evaluate)
2) IDENTIFY VARIABLE
3) CANCEL Operations using their opposites in reverse order of operations
EXAMPLES:
1) 7x + 5 – 3x = 17
2) 9(x + 4) = 63
3) 4(2y – 3) = 28
4) 7(6 – x) = 56
5) 3(8+ n) – 15 = 24
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7) 19 = 9 + 2(x – 7)
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9) 4(3y – 5) – 7y = - 60
CC MATH I STANDARDS UNIT 3
4.5 SOLVING MULTI-STEP EQUATIONS: PART 2
WARM UP: Simplify each of the following expressions
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SOLVE THE FOLLOWING ONE and TWO STEP EQUATIONS
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PRACTICE: SOLVE MULTISTEP EQUATIONS
1) 10x – 7x = 12
2) 9z + 11 – 5z = 27
3) – 7 + 6n – 9 = - 4
4) 6(y + 7) = 66
5) -3(4x + 9) = 15
6) 5(1 – 2x) = - 65
7) 8 + 3(r + 5) = 5
8) 15 – 2 ( 7 – x) = 7
9) 7(3 + 4y) – 15y = 73
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CC MATH I STANDARDS UNIT 3
4.5 SOLVING MULTI-STEP EQUATIONS: PART 3
WARM UP PART 1: Simplify each expression
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WARM UP PART 2: Solve each equation
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HOMEWORK: SOLVE EACH EQUATION #1 – 14 10/22
• Use a separate piece of paper as needed
• Reduce all fraction answers
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MATCH SOLUTIONS BELOW WITH THE EQUATIONS ABOVE
A) 2
B) 4
C) -3
D) -5
E) -1/2
F) 1
G) 1/3
H) ¼
I) -2
J) 3
K) -7
L) 9
M) 11
N) 3/2
BONUS: ADVANCED PROBLEMS
B#1) 3(2x + 4) – 2(5 – x) = 66 B#2) [pic]
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