Simplify these expressions and find their values if x = 4
a) 7x +5-x + 12
b) 4 - 8x + 12
d) 16 - 7b + 4a - 5x e) 6b-8a - 4-9 + b
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a)7(4) +5-4 +12
28+1+12
28+13
41 is the answer
b)4-8(4)+12
4-32+12
4+12-32
16-32
-16 is the answer
Answered by
6
Answer:
this is correct answer ok thank you
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