Tentukan nilai variabel pada plsv berikut!
2x+5 = 9
3x+2 = 5x+8
2(x+3)=3(x-2)
-8x+3y-5=10
-2y+8=2(y+8)
2x+5 = 9
3x+2 = 5x+8
2(x+3)=3(x-2)
-8x+3y-5=10
-2y+8=2(y+8)
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2x= 4
X=2
2) 3x+2=5x+8
3x-5x=8-2
-2x=6
x=-3
3) 2x+6= 3x-6
2x-3x=-6-6
-x=-12
x=12
4) -8x+3y=15
3y=8x+15
y= 8/3x+5
5)-2y+8=2y+16
-2y-2y=16-8
-4y=8
y=-2