Replacing Letters With Numbers

to replace variables (letters) with numbers in an algebraic expression

• equivalent fractions

• ratio

• reduce

• evaluate

• substitution

replacing a variable with a number or expression

• equivalent fractions

• substitution

• evaluate

• equivalent expressions

• similar figures

a letter that represents an unknown value

• evaluate

• equivalent ratios

• variable

• substitution

• expression

2(b) + 8= __________
b=2

• 12

• 10

• 16

• 8

2(c) + 5=_______________
c= 6

• 15

• 17

• 13

• 11

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

• 8

• 0

• 2

• 4

2(b) - 3=______
b=5

• 2

• 10

• 1

• 7

Last one,  5x + 2x + 2= ___________
x= 2

• 16

• 13

• 0

• 4

The process of replacing our variables in an expression with numbers and then simplifying the expression to a single value.

• using the order of operations

• evaluating

• distributing

• combining like terms