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Practice
Simplify the expressions below.a)
q30
q20
q-10
q30
b)
y-5
y-10
y-5
y-5
c)
w9
w15
w6
w9
d)
x-13
x-3
x10
x-13
e)
x18
x19
x1
x18
f)
p15
p7
p-8
p15
g)
y18
y17
y-1
y18
h)
p11
p15
p4
p11
i)
x11
x12
x1
x11
j)
q4
q-6
q-10
q4
