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Practice
Simplify the expressions below.a)
x12
x7
x-5
x12
b)
w-2
w4
w6
w-2
c)
w6
w5
w-1
w6
d)
r-5
r-1
r4
r-5
e)
x1
x-6
x-7
x1
f)
w15
w20
w5
w15
g)
v3
v7
v4
v3
h)
x12
x7
x-5
x12
i)
w12
w2
w-10
w12
j)
w2
w-5
w-7
w2