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Practice
Simplify the expressions below.a)
x18
x15
x-3
x18
b)
y-6
y4
y10
y-6
c)
x2
x-1
x-3
x2
d)
p8
p17
p9
p8
e)
p-3
p-7
p-4
p-3
f)
m-13
m-9
m4
m-13
g)
y-10
y-7
y3
y-10
h)
r10
r4
r-6
r10
i)
q7
q17
q10
q7
j)
q-5
q4
q9
q-5