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8-6+8y=7y-1
2+8y=7y-1
2+1=7y-8y
3=-y
-3=y
2. 5x+7[3x+2]=6[4x+1]
5x+21x+14=24x+6
19+21x=24x+6
21x-24x=6-19
-3x=-13
x=-13/-3
x=4 1/3
8-6-8y = 7y-1
2-8y = 7y-1
2+1 = 7y+8y
3 = 15y
3/15 = y
0,2 = y
2. 5x+7(3x+2) = 6(4x+1)
5x+21x+14 = 24x+6
26x + 14 = 24x+6
26x-24x = 6-14
2x = -8
x = -8/2
x = -4