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2x=11-3
x=8/2=4
b. 7x=8+3x
7x-3x=8
4x=8
x=8/4=2
c. 3p+5=17-p
3p+p=17-5
4p=12
p=12/4=3
d. 7q=5q-12
7q-5q=-12
2q=-12
q=-12/2=-6
e. 6-5y=9-4y
6-9=-4y+5y
-3=y
f. 7n+4=4n-17
7n-4n=-17-4
3n=-21
n=-21/3=-7
g. 2(5-2x)=3(5-x)
10-4x=15-3x
10-15=-3x+4x
-5=x
h. -2x+5=-(x+9)
-2x+5=-x-9
-2x+x=-9-5
-x=-14
x=-14/-1=14
i. 18+7x=2(3x-4)
18+7x=6x-8
18+8=6x-7x
26=-x
26/-1=x
-26=x
j. 3(2x-3)-2(1-x)-(x+3)=0
6x-9-2+2x-x-3=0
6x+2x-x=9+2+3
7x=14
x=14/7=2
(?) maaf kalo salah