Substitution With Negatives

when x = -3

what is 5x

• 15

• -8

• -15

• 2

when x = 12

what is -3x

• 15

• -36

• 36

• 9

If a=-3 and b=-2 work out the value of 4a-3b

• -6

• 0

• -8

• -4

Ix x=-5 and y=-3 work out the value of 3x+2y

• -21

• -9

• -15

• -12

If n=-4 and m=-2 work out the value of -5m-3n

• -10

• -8

• 14

• 22

If p=-6 and q=-1 work out the value of 2p+4q

• -12

• -8

• -10

• -14

If u=-7 and v=-3 work out the value of 5u-2v

• -29

• -35

• -31

• -37

If c=-2 and d=-4 work out the value of 6c+3d

• -18

• -30

• -20

• -24

If x=-8 and y=-2 work out the value of 4x+5y

• -50

• -42

• -36

• -46

If a=-1 and b=-7 work out the value of 3a+2b

• -13

• -17

• -15

• -11