Equations with Addition
P+11=19
p = 8?
W-6=9
w=15?
24=6W
w= 4?
d/6=7
d= 42?
A symbol (usually a letter) that represents an unknown quantity
What is a variable?
What operation will undo addition?
Subtraction?
18=h+16
h=2?
e-20=-26
e= -6?
2P=16
p=8?
A/-6=-9
a= 54?
The number in front of a letter
What is a coefficient?
Expression or Equation? 4x - 2
What is expression?
26=A+7
A=19?
Z-8=-22
z= -14?
-2x=10
x=-5?
v/10=-5
v=-50?
An expression with an equal sign.
What is an expression?
What operation will undo division?
multiplication?
-24=z+ -15
z = -9?
-14=M-20
m= 6?
-36=6M
M= -6?
-16=w/4
w= -64?
A value that does not change
What is a constant?
3/3
What is 1
15+A=5
A = -10?
-20=c-18
c= -2?
3y=15
y=5?
J/10=-5
j=-50?
What is the goal of solving an equation?
To isolate the variable?
-7-10
What is
-17
-22=k+7
k=-29?
-5 = y - 12
y=7?
15=-15K
K=-1?
-3=z/15
z=-45?
Operations that undo each other; addition and subtraction / multiplication and division
What are inverse operations?
What operation will undo subtraction?
Addition