This type of math problem has no equal sign.
Expression
4+b=7
b=3
6x-2x=24
x=6
p+7p+5p
13p
Is this an expression or equation?
2y+6x+12+4y-18y
Expression
This type of math problem has an equal sign.
Equation
-10+x=4
x=14
2x+5=21
x=8
6m+m+2+3m
10m+2
What makes an equation different than an expression?
It has an equal sign.
Another word for a number (without any letters beside it) in expressions and equations.
Constant
4x=20
x=5
3b-4=11
b=5
-6q+7-2+4q
-2q+5
List the FOUR steps to solve an equation in the correct order.
1. Isolate Variable
2. Inverse Operations
3. Balance Equation
4. Plug-in
Another word for a number (with any letters beside it) in expressions and equations.
Coefficient
x/2=5
x=10
2(3x+1)=14
x=2
7x+3y-4x+2y
3x+5y
Write an expression to show seven decreased by a number, x
7-x
The letters in an expression or equation.
Variable
0.3r=2.1
r=7
2(x+2x)=36
x=6
Find the sum of the following expressions.
(3x+4)+(2x-1)
5x+3
Write an equation for this story.
Tom has 2 oranges and some strawberries. In all, he has 7 pieces of fruit. How many strawberries does he have?
2+s=7