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Practice
Simplify the expressions below.a)
r2
r10
r8
r2
b)
m-13
m-9
m4
m-13
c)
q9
q2
q-7
q9
d)
x-9
x-10
x-1
x-9
e)
w15
w11
w-4
w15
f)
y-5
y1
y6
y-5
g)
q15
q11
q-4
q15
h)
v14
v8
v-6
v14
i)
q22
q18
q-4
q22
j)
m6
m-1
m-7
m6