Question

a. 6m+3-4m=30+m
b. 10a+16=4a+21+2a
c. 12x +20=6x+50
d.2z-32=-6+4z
e. 2(x+5)=18
f.3x+5(x+4)=2(6x+16)
o. 8a+5(a+2)=3(5a-20

Answer 1

a)6m+3-4m=30+m
6m-4m-m=30-3
m=27

b)10a+16=4a+21+2a
10a-4a-2a=21-16
4a=5
a=5/4

c)12x+20=6x+50
12x-6x=50-20
6x=30
x=30/6
x=5

d)2z-32= -6+4z
2z-4z= -6+32
-2z=26
z=26/-2
z= -13

e)2(x+5)=18
2x+10=18
2x=18-10
2x=8
x=8/2
x=4

f)3x+5(x+4)=2(6x+16)
3x+5x+20=12x+32
3x+5x-12x=32-20
-4x=12
x=12/-4
x= -3

o)8a+5(a+2)=3(5a-20)
8a+5a+10=15a-60
8a+5a-15a= -60-10
-2a= -70
a= -70/-2
x=35

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