Year 7 Algebra Revision

Writing expressions

100

The sum of x and y 

x + y

200

The product of 3 and f

3f

300

2 more than x, then the result is multiplied by 5

5(x+2)

400

The quotient of h and 4, then 6 is subtracted from the result

h/4 - 6

500

7 less than w, then the result is divided by 4

(w-7)/4

Substituting values

100

If t = 5, what is the answer to: t + 3

8

200

If b = 3, what is the answer to: 2b + 4

10

300

If p = 15, what is the answer to: p/3

5

400

If t = -4 and r = 2, what is the answer to: 5r - 3t

22

500

If a = -4, what is b when: b = a/2 + 5 

b = 3

Adding and Subtracting Terms

100

3a + 2a

5a 

200

6ab - 3ba

3ab

300

12x² + 3x - 4x² + 7x

8x² + 10x

400

12xy + 3x² -14yx + 4x²

-2xy + 7x²

500

6gh - 5gh + 10g + 3

gh + 10g + 3

Multiplying and Dividing Terms

100

7h X 3g

21gh

200

3g X 2g

6g²

300

4g / g

4

400

4g²h / 2g

2gh

500

4f³g X 2fg

8f⁴g²

Solving Equations

100

x + 5 = 7, what does x equal?

x = 2

200

2x +8 = 20, what does x equal? (Explain working)

x = 6

300

4(x - 9) = 8, what does x equal? (Explain working)

x = 11

400

(x + 10) / 4 = 6, what does x equal? (Explain working)

x = 14

500

3x + 4 = 2x + 7, what does x equal? (Explain working)

x = 3