Vocabulary
What is the difference between a variable term and a constant term?
Variable terms have a variable, constant terms do not.
When we have numbers next to parenthesis, what math operation are we doing?
Multiplication
What is the second step in solving an equation?
Combine like terms
Solve:
1/2 x + 3 = 2
-2
Solve:
2(x+3)=-2(x-3)
0
What makes a number rational?
It can be written as a fraction.
Distribute 2(x+3)
2x+6
Combine like terms:
8x-5+2x-4
10x-9
Find LCM and solve:
1/2x + 1/4 = -1/4
-1
What is the last step in solving an equation?
Use inverse operation on the co-efficient. (Multiply or divide what ever is next to the variable.)
What is the difference between a variable term and a constant term?
Variable terms have a variable, constant terms do not.
Distribute and solve:
2(x+3)=-2(x-3)
0
Combine Like terms:
5x - x - 7y +y
4x - 6y
0.21 - 0.5 = -0.29
x = 1
Solve:
3(x-5)=2(2x+4)
-23
What does inverse mean?
opposite
What is the first step in solving an equation?
Distribute if necessary.
3x + 7x -2x +7 - 6y
8x + 7 - 6y
Solve
0.7x + 0.3=1.0
1
Solve the following:
0.03x - 0.14 = 0.02(0.1x - 0.07)
x = 2
What do we mean by combine in math?
Add
Distribute:
8(3x+3)
24x+24
x + x + 3x + y + y + 5 + 3
5x + 2y + 8
Clear out decimal and solve:
3.5x + 6.5 = -0.5
x=2
Solve:
3/4x - 1/8 = 1/2x + 5
x = 39/2
or 19.5
or
19 1/2