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(1/5)*(4*y+5) = (1/4)*(y+3)+3 // - (1/4)*(y+3)+3
(1/5)*(4*y+5)-((1/4)*(y+3))-3 = 0
(1/5)*(4*y+5)+(-1/4)*(y+3)-3 = 0
1/5*(4*y+5)-1/4*(y+3)-3 = 0
1/5*(4*y+5)-1/4*(y+3)-3 = 0
11/20*y-3+1/4 = 0
11/20*y-11/4 = 0
11/20*y-11/4 = 0
11/20*y-11/4 = 0 // + 11/4
11/20*y = 11/4 // : 11/20
y = 11/4/11/20
y = 5
y = 5
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