9th,Per.3,Team+2

=Chapter 2: Solving Equations=  Sarah, Robbie, Mason, Jonny  =Section 1: Solving Two-Step Equations- =

Ex 1) 10=m/4+2


5. -3+m/3+12___
=Section 2: Solving Multi-Step Equations=

Ex 1) 2c + c + 12 = 78 2c + c + 12 = 78 3c + 12 = 78 Combine like terms 3c + 12 -12 = 78 -12 Subtract 12 from each side 3c = 66 Simplify 3c/3 = 66/3 Divide each side by 3 c = 22 Simplify

 Ex 2) 8b + 16 - 2b = 46 8b + 16 - 2b = 46 8b -2b + 16 = 46 Put the like terms together 6b + 16 = 46 Combine like terms 6b + 16 - 16 = 46 - 16 Subtract 16 from both sides 6b = 30 Simplify 6b/6 = 30/6 Divide each side by 6 b = 5 Simplify

Ex 3) -2(b - 4) = 12 -2b + 8 = 12 -2b + 8 -8 = 12 - 8 -2b = 4 -2b/-2 = 4/-2 b = -2

1) 6a - a + 9 = 56 2) 9c + 14 + 2c = 75 3) 4(y + 6) = 26 4) -5(s - 3) = 18 5) 6(d - 5) = 35 Section 3: Equations with Variables on Both Sides- Ex 1.) 6x+3=8x-21 Ex 2.) 40+1.5h=3.5h

Ex 3.) 10-8a=2(5-4a) 1) 6x-2=x+3   2) 5y-3=2y+12 3) 4k-3=3k+4 4) 5m+3=3m+9 5) 8-x=2x-1