Question

simplified these expressions and find their values if X = 3, a=-1,b=-2
A. 3x-5-x+9
B. 2-8x+4x+4
C. 3a+5-8a+1
D. 10-3b-4-5b
E. 2a-2b-4-5+a

Answer 1

A) 3(3)-5-3+9
9+1=10

B)2-3(3)+4(3)+4
2-9+12+4=9

c)3(3)+5-8(-1)+1
9+5+8+1= 24

D)10-3(-2)-4-5(-2)
10+6-4+10=22

E)2(-1)-2(-2)-4-5+(-1)
-2+4-10=-8

Answer 2

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