0
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7x = 3x - 12
4x=-12
x=-3
X = 12
3x=12 3x/3=12/3 x=4
x = 4 and y = 0
15x minus 8=minus 180 3x+8=24
23
3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2
y-3x+6y=12 7y=3x+12 y=3x/7 +12/7
4+3x-27=-12 To solve it... 3x= -12-4+27 3x= 11 x= 11/3 x= 3.666
-9
3
x = -8
x=7