Addition
Solve for h.
h + 5 = 19
h = 14
Solve for z.
z- 3 = 7
z = 10
Solve
y + 16 = 20
y = 4
Solve for w.
w - 7 = 12
w = 19
What is a variable?
a letter that represents an unknown number
Solve for m
m + 3= 10
m = 7
Solve for x.
x - 2 = 7
x = 9
Solve for c.
c + 8 = 19
c = 11
Solve for z.
z - 17 = 25
z = 42
What is the coefficient in the following expression?
7k + 3 = 5
7
Solve for n.
n + 14 = 31
n = 17
Solve for r.
r - 33 = 17
r = 50
Solve for y.
y + 3 = 17
y = 14
Solve for r.
r - 12 = 18
r = 30
What is the operation being performed?
x + 3 = 5
Addition
Solve for p.
p + 13 = 100
p = 87
Solve for t.
t - 6 = 15
t = 21
Solve for f.
f + 3 = 9
f = 6
Solve for k.
k - 9 = 23
k = 32
What is the inverse operation of addition?
subtraction
Solve for x.
45 + x = 90
x = 45
Solve for x.
x - 57 = 33
x = 90
Solve for h.
h + 75 = 125
h = 50
Solve for j.
j - 9 = 15
j = 24
What is the inverse operation of multiplication?
division