Substituting Value

Find the value of 5x +3 if x = 4

• 12

• 23

• 18

• 32

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

• -9

• 9

• 11

• -5

If x = -6, find the value of -5x -2

• 28

• 25

• 20

• -12

Evaluate the expression:
2x + 5y + 10 
if x = 5 and y = 4

• 40

• 35

• 50

• 45

You are given the equation
2x + 3y = 6
Substitute the values (3, 0) into the equation. Which equation below shows a correct substitution?

• 2(0) + 3(3) = 6

• 2(3) + 3(0) = 6

• 3x + 0y = 6

• 2(3x) + 3(0y) = 6

• -rac{1}{3}

• \frac{1}{3}

• \frac{5}{3}

• \frac{7}{3}

• 2

• 3

• 4

• 5

If y = 7x +2, what is y when x = 4?

• 76

• 28

• 30

• 13

• 22

• 5

• 4

• 7

• -5

• -1

• 1

• 5