Substitute the Given Value into an Expression

If x=4, find the value of 3x-2

• 6

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If p=2 and q=3, find the value of 3p-q

• 3

• 6

• 9

• 12

• 4

• 4.5

• 3.5

• 5

If x=4 and y=8

find the value of 3x+2y

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(k=5 and j=12)

show the value of of 3k-4j

• 33

• 37

• -22

• -33

Help Celine solve this question. 
 a= -2 and b=6 find the value of 2a + 3b

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• 16

• 13

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Given x=20 and y=2

find the value of x/2 + 4y

• 20

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Given x=4, y=7 and z=2

find the value of x²+ 7y+ 5z

• 75

• 1

• 78

• 73

Given k=4 and p=3

find the value of 4k+9p

• 40

• 53

• 31

• 43

Given j=6 and L=4
find the value of 4j-3L

• 12

• 21

• 16

• 7