Algebra - Substitution

If a = 4, b = 6, what is 3a + 5b?

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If x = 5, find the value of 2x - 1

• 9

• 11

• 7

• 13

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

• 27

• 12

• 17

If y = 7, find the value of 2(y + 7)

• 11

• 28

• 20

• 22

If a = 6 and b = 7, find the value of 15 - a - b

• 2

• 3

• 4

If a = 4, b = 5 and c = 6, find 2c - a - b

• 4

• 3

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When x = 3, y = 6 and z = 7, find 2x - z

• -1
• -2
• -3
• -4

If x = 5, find the value of 7x - 1

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

• 27

• 12

• 17

If y = 7, find the value of 2(y + 4)

• 11

• 22

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