Equations, Expressions and Inequalities Flashcards Preview

10M2 Mathematics > Equations, Expressions and Inequalities > Flashcards

Flashcards in Equations, Expressions and Inequalities Deck (13):
1

Solve 3x=12

x=4

Divide both sides by 4

2

Solve x-9=11

x=20

Add 9 to both sides

3

Solve x+7=23

x=16

Subtract 7 from both sides

4

Solve x/4=8

x=32

Multiply both sides by 4

5

Expand 3(x+7)

3x+21

6

Expand 4(x-5)

4x-20

7

Expand 5(8-x)

40-5x

8

Expand 6(3-2x)

18-12x

9

Expand 7(4x+3)

28x+21

10

Write an expression which means ‘multiply x by 6 then subtract 1’

6x-1

10

Write an expression which means ‘multiply n by 3 then add 7’

3n+7

11

Write an expression which means ‘subtract 4 from n then multiply by 7’

7(n-4)

12

Write an expression which means ‘add 3 to h then multiply by 8’

8(h+3)