Simplify these expressions and find their
values if x = 4, a = -4, b = -5.
a 7x +5-x+12
Answers
Answered by
3
Answer:
20
Step-by-step explanation:
7x+5-x+12
= 7×(4)+5×(-4)+12
=28+(-20)+12
=28-20+12
= 28+12-20
= 40-20
=20
hope u liked my answer.
Answered by
0
Answer:
7x + 5 - x + 12=
7(4)+5-4+12
28+5-4+12
= 41
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