7th Grade Math

Combine Like Terms

100

5+3x+10

3x+15

200

2y+2+10

2y+12

300

2x+5+5x+8

7x+13

400

7y+9+3y+1

10y+10

500

4x+7y+10z+5y+6x+1z

10x+12y+11z+

Adding/Subtracting Integers

100

10 + -8

2

200

-10+-20

-30

300

-20+5+8+2

-15

400

-40+ -50+ -8+100

2

500

100-5-15-9-1

70

Solve for X

100

16x+16=32

x=1

200

4x+12=24

x=3

300

100x+500=700

X=2

400

5x+45=90

X=9

500

3x+30=60

X=10

Multiplying/Dividing Integers

100

-50 X 6

-300

200

250/25

10

300

2 X 10 X -5

-100

400

-90/9 X 2

-20

500

-2 X 8 X -2 X -2  

-64

Distributive Property

100

8 (x +8)

8x+ 64

200

2 (x -12)

2x -24

300

5 (2x +6y)

10x+30y

400

9 (2x+ 5y+ 9z+ 3h)

18x+45y+81z+27h

500

3 (2x+4r+8t+6y+8b)

6x+12r+24t+18y+24b