LINEAR
(1) X+25=30 (6) -8X+20=2X+60
X=30-25 -8X-2X=60-20
X=5 -10X=40
X=40/-10
X=-4
(2) 30=X+45 (7) 2(6+8X)+8X=60
30-45=X 12=16X+8X=60
-15=X 16X+8X=60-12
24X=48/24
X=2
(3) -9X+27=45 (8) 6y=10(y-5)=14
-9X=45-27 6y+10y-50=14
-9X=18 16y=14+50
X=18/-9 16y=64
X=-2 y=64/16
y=4
(4) -25=-3+35 (9) 8Z-16=-64
-25-35=-3X+35 8Z=-64+16
-60=-3X 8Z=-48
-60/-30=X Z=-48/8
20=X Z=-6
(5) 8X-4=12=12X (10) -9X-14=2X+56
18X-12X=12+4 -9X+2X=56+14
-4X=16 -7X=70
X=16/-4 X=70/7
X=-4 X=10
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