x = 8y, which cannot be simplified any further, unless solving for y, which would be y = x/8.
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Solving for y: 5y = 9 + 2y 5y - 2y = 9 3y = 9 y = 9/3 = 3
5x+3y
5y - 4 + 3y = 12 Combine like terms: 8y - 4 = 12 Add 4 to both sides: 8y = 16 Divide both sides by 8: y = 2
6x - 3y
x = 2.15 and y = 3.75