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If 2x + 5y = 10, how would you write 2 lots of this equation

A

4x + 10y = 10

B

4x + 5y = 20

C

4x + 10y = 20

D

4x + 5y = 20

If 2x + 5y = 10, how would you write 3 lots of this equation

A

6x + 15y = 30

B

6x + 15y = 10

C

3x + 15y = 10

D

6x + 5y = 30

If x + 2y = 6, select an equivalent equation from the options below.

A

3x + 6y = 12

B

4x + 8y = 24

C

5x + 2y = 30

D

x + 2y = 3

If 4x + 10y = 18, select an equivalent equation from the options below.

A

0.4x + 1y = 0.18

B

4x + y = 1.8

C

4x + y = 0.18

D

0.4x + y = 1.8

Given 2x + 3y = 7 and 10x + 15y = 35, explain how we know that they are equivalent fractions.

Drag and drop the terms on the right hand side so that all of the following equations are equivalent to 3x + 4y = 5

TRUE

FALSE

2x + x + 3y + y = 5

4x - x - 3y + y = 5

3y - 4x - y + 1x = 5

3y - 4x + y + 1x = 5

If x + y = 5, rearrange the equation so that we have x = ...

A

x + y = 5

B

x = 5 - y

C

x = 5 + y

D

x = y - 5

If x + 2y = 6, rearrange the equation so that we have x = ...

A

x = 2y - 6

B

x = 6 + 2y

C

x = 6 - 2y

D

x + 2y = 6

If 3 x 6 = 18, select the correct alternatives.

A

18 ÷ 6 = 3

B

18 ÷ 3 = 6

C

18 x 6 = 3

D

18 x 3 = 6

Which of these is not equivalent to

3e - f = 15

3e - f = 15

A

3e = 15 + f

B

3e -f - 15 = 0

C

3e = f + 15

D

3e + 15 = f

Which of these is not equivalent to

3e - f = 15

3e - f = 15

A

3e = 15 + f

B

3e -f - 15 = 0

C

3e = f + 15

D

3e + 15 = f