How to
What is the inverse operation for division?
multiplication
Solve for x:
x-4=9
x=13
What is the first step to solving this equation?
5/6x-1=4
+1 to both sides
Solve for b:
5b+2=17
b=3
What is the number in front of a variable called?
coefficient
How many operations are there to undo in a two-step equation?
two: add/subtract and multiply/divide
Solve for y:
-4y=28
y=-7
What is the first step to solving this equation?
1=3/4x-1/2
Add
1/2
to both sides
Solve for y:
8+3y=17
y=3
How many operations are in this equation?
x/7+6=20
Two (division and addition)
True or False:
you must change the sign when undoing multiplication
False
Solve for a:
a/2=4
a=8
Which operation must you do first when solving this equation?
3x-8=17
addition
Solve for m:
2m+4.1=14.9
m=5.4
Inverse operation
Which operations have to be done first when solving two-step operations?
Solve for x:
x+4.5=12.8
x=8.3
Which operations must you do when solving this equation (in order)?
-3x-9=6
addition, division
Solve for p:
1/4p+1/2=1
p=2
What is the answer to an equation called?
A solution
What is the next step to solve this equation?
-3c=27
divide both sides by -3
Solve for x:
x-3/8=1/4
x=5/8
Which operation must you do first when solving this equation?
3x-4x=15
subtraction!
(combine like terms)
Solve for w:
-5/6w-1=4
w=-6
What is the name for the fraction you have to multiply by a fractional coefficient to make it go away?
a reciprocal fraction