Expressions Replacing Letters with Numbers

math phrase that combines numbers AND variables (letters: 3b or 5x) by using (+, -, *, ÷). *does not have an equal sign (=)

• algebraic expression

• equivalent expressions

• reduce

• substitution

• ratio

replacing a variable with a number or expression

• equivalent fractions

• substitution

• evaluate

• equivalent expressions

• similar figures

math phrase that combines numbers by using +, -, *, or ÷

• ratio

• reduce

• expression

• equivalent expressions

• evaluate

y - 6=__________
y=10

• 4

• 1

• 16

• 10

Which equation represents the relationship between b and c?

• c = 70b

• c = b + 70

• c = 140b

• c = b + 140

2(b) + 8= __________
b=2

• 12

• 10

• 16

• 8

2(c) + 5=_______________
c= 6

• 15

• 17

• 13

• 11

3(c) -11= ___________
c= 5

• -3

• 7

• 9

• 4

(c-10) + 8= ________
c= 10

• 8

• 0

• 2

• 4

2(b) - 3=______
b=5

• 2

• 10

• 1

• 7