Chapter 1

Combining like terms

100

3x-6-5x+9

-2x+3

200

5x²+8y-4x²-6y+7

x²+2y+7

300

-3xy-10y-4xy-8xy+6y

-15y-4y

400

8x³+6x²-4x-6x²-5x³+3x

3x³-x

500

-8x²y+6x²-4xy²-5x²y-4xy²+x²

-13x²y+7x²-8xy²

Distribution

100

2(x+8)

2x+16

200

-(3x-12)

-3x+12

300

5+3(2x+5)

6x+20

400

8x-4(3x+4)

-4x-16

500

-7-5(-x-5)

5x+18

Solving/Proportions

100

x-9=-6

x=3

200

x/7=4/6

x=14/3

300

x/12=-7/9

x=-28/3

400

8x-7=22

x=29/8

500

3(x+6)=-14

x=-32/3

Evaluate

100

3(11-2) / (5-2)

9

200

(4/2)²+6+6

40

300

(xz+z-y)/2

x=2    y=4     z=6

7

400

n-m/3+n+n

n=3    m=6

17

500

(y-x)²+y+z

x=1   y=4    z=5

18

Fractions

100

-6/5 x 3/8

-9/20

200

3/5 / -9/5

-1/3

300

(-5/8) + (-7/4)

-19/8

400

(-1/6) - 3/2

-5/3

500

(-1/5) - (-11/8)

47/40