Math Algebra Substitutions

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

• -1

• -2

• -3

• -4

A mathematical sentence containing an equals sign is a/an........

• exponent

• equation

• term

• variable

A letter used to represent a number is a pronumeral or ___________

• Variable

• Coefficient

• Constant

• Function

y=4,
find the value x if: x= 3y+5

• 27

• 12

• 17

• 15

x=5,
find o if o=7x-1

• 34

• 36

• 35

• 37

If k=4,
find the value of l if l=3k+5

• 27

• 12

• 17

Solve: 6(2+72/4)

• 60

• 24.5

• 123

• 120

solve: a/-2 - 10 = 3

• -26

• 26

• a=-26

• a=26

solve: 3x6+(6/3+[7x7])

• 47

• 52

• 69

• 58

Evaluate:
2 + (8 - 4) + 3² * 3

• 36

• 35

• 33

• 24