Download CCMIA * Class Session #2

Tuesday, June 17 th
Chapter 1:
Review Sections 1.1, One-Step & Two-Step Equations
Sections 1.2 – 1.4
 Distributive Property (answers must be in standard form ax + b)
a (b + c) = ab + ac
Ex #1:
5 (x + 2)
5(x) + 5( 2)
Ans: 5x + 10
Ex #2) -3 (2x – 4)
-3(2x) + -3(-4)
Ans: -6x + 12
Ex #3) -2( -4 + 3x)
-2(-4) + -2(3x)
8 - 6x (Standard Form, x terms then constants)
Ans: -6x + 8
 Combining Like Terms (Must have same variable(s) to the same power)
Standard form: Variables with powers in decreasing order:
ax2 + bx + c
Ex #1:
5y - y
Ans: 6y
Ex #2) 4x – 3 – 5x
4x – 3 – 5x = 4x – 5x - 3
Ans: -x – 3 or -1x - 3
Ex #3) 4x2 – 3x + 5 – 7x – 6x2 + 9
4x2 – 3x + 5 – 7x – 6x2 + 9
4x2 – 6x2 – 3x – 7x + 5 + 9
Ans: -2x2 – 10x + 14
 Do these on a separate piece of paper to turn in.
 We CANNOT divide by fractions:
 We must multiply by the reciprocal
 Click on the links and watch each video. Take notes on the videos.
 https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8th
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solving-equations/cc-8th-linear-equations/v/multi-step-equations-1
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8thsolving-equations/cc-8th-linear-equations/v/solving-equations-2
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8thsolving-equations/cc-8th-equations-distribution/v/equation-specialcases
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8thsolving-equations/cc-8th-equations-distribution/v/ex-2-multi-stepequation
https://www.khanacademy.org/math/cc-eighth-grade-math/cc-8thsolving-equations/cc-8th-equations-distribution/v/solving-equationswith-the-distributive-property
 Solving a literal equation uses the same steps as
solving an equation with one variable. You just can
not simplify all the variables.
Steps for rewriting an equation in slope-intercept
form
y = mx + b
*m = reduced improper fraction (NO DECIMALS)*
Step 1: Add/Subtract x from each side
Step 2: Divide everything by the # in front of y