Algebra

Combining Like Terms

100

4x + 3x

7x

200

4x + 5 + 2x

6x + 5

300

5 + 3 + 4y

8 + 4y

400

8 + 6y + 3x + 9

17 + 6y + 3x

500

2x + 2x² + 6 - 3

2x + 2x² + 3

Solving equations

100

x/12 = 6

x = 2

200

8(x + 3) = 48

x = 3

300

2g–4=6

g = 5

400

m+9/5 =2

m = 1 

500

3(r–7)=–24

r = 15

identifying like terms

100

which is a like term: 5x + 6x or 5z + 5c

5x and 6x

200

which is a like term: 7z - 4x or 6 + 7

6 + 7

300

which is a like term: 8x + 9z or 7x + 6x

7x and 6x

400

which is a like term: x + 7x or 6z +6x

x and 7x

500

which is a like term: 9x - 7x or 9 - 5

9x and 7x

What's the first step

100

6(5 + 8)

add what's inside the parenthesis

200

5 x 4 + 7

mutiplying 5 x 4

300

6 - 5 +7

subtracting 6 -5 

400

14(5 x 6)

multiplying what's inside the prenthesis

500

14/7 x 8

divding the 14 and 7

What's the last step

100

6(5 + 8)

doing 6 times 40

200

5 x 4 + 7

doing 20 + 7

300

6 - 5 +7

doing 1 + 7

400

14(5 x 6)

doing 14 x 30

500

14/7 x 8

doing 2 x 8