Substitution in Algebra

If a = 4 and b = 6, what is the value of 3a + 5b?

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Tags

CCSS.6.EE.A.2C

If y = 4, find the value of 3y+5.

• 27
• 12
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• 18

Tags

CCSS.6.EE.A.2C

If a=3, and b= -1, then (ab)² =

• -3

• -9

• 3

• 9

If x= -4, y=2 and p=3, then (x/y)^p =

• -8

• -1/8

• 1/8

• 8

If x= -3, y=4 and z= 1, evaluate 2x + 3y -5z

• -1

• 13

• -13

• 1

Given x= -3 and y=2, find 9xy/6

• 9

• 54

• -54

• -9

If x=3, y=4, and z=5, then (3y + 2z)/(x + z) =

• 22/15

• 17/15

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• 22/7

Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a² + c²   

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• 68
• 43

Tags

CCSS.6.EE.A.2C

Work out the value of the expression when x = 3, y = – 2 and z = – 4.
2x² + z²   

• 2
• 27
• 50
• 34

Tags

CCSS.6.EE.A.2C