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Practice
Simplify the expressions below.a)
v7
v-1
v-8
v7
b)
r16
r11
r-5
r16
c)
x21
x20
x-1
x21
d)
r-13
r-7
r6
r-13
e)
r16
r6
r-10
r16
f)
r12
r4
r-8
r12
g)
w-18
w-9
w9
w-18
h)
v19
v10
v-9
v19
i)
r-18
r-9
r9
r-18
j)
w17
w15
w-2
w17