Solve the simultaneous equations for x and y: 3x+3y=5 and 6x+5y=9
3x+3y=5 6x+5y=9Multiply the first equation by 2 to get a workable x coefficient:6x+6y=10Write the equations above each other and subtract them:6x+6y=10 - 6x+5y=9
y = 10-9y = 1
By substituting your answer for y back into the very first equation:3x+3y=53x+3(1)=53x=2x=2/3
JC
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