Download Goals for solving equations: 1. Isolate the variable 2. Keep the

Date: 4/28 – 5/1/2016
Lesson number:
Lesson Title: Solving Linear Equations
Learning Target: Find the value of x in a linear equation
Success Criteria:
1.
2.
before
after
Questions:
IN: Solve:
#4a
1)
Know that inverse operations are used to isolate the
variable.
Know that “keeping the balance” is required.
2)
N + 5 = 32
2
x = 45
5
Goals for solving equations:
1. Isolate the variable
2. Keep the balance
One-step equations:
1. Use the inverse operations to isolate the variable.
- Add/subtract (add the opposite)
- Division/multiplication
2. Check by plugging back in.
Two-step equations:
1. Use the inverse operation to move the constant and isolate the variable.
- Will always be add/subtract
2. Multiply or divide by the coefficient
- If it is a full fraction, multiply by the reciprocal.
3. Simplify and check
2
Examples: n – 7 = 19
3
+7 +7
________
2
n = 26
3
2
3
𝑥−5
3
3*
= -10
𝑥−5
3
= -10 * 3
x – 5 = -30
2
3
3
2
x n = 26 x
78
N=
2
N = 39
+5
+5
_________
x = -25
Summary: _________________________________________________________________________________________________
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Out:
1
Is 𝑥 = 8 a solution to (x + 6) = 4x – 3x – 1. Show your
2
work, explain your answer.
HW: _________________________
1. Various practice
sheets
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2. IMB #4a (front
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and back)
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