Solve the simultaneous equations 3x +y =11 and 2x+y=8
Equation 1: 3x+y= 11, Equation 2: 2x+y=8. You want to find out what x is and what y is.In both equations there is only 1 unit of y therefore it is easiest to rearrange the first equation so that it equals y this will become your equation 3. Equation 3: y=11-3x, Equation 2: 2x+y=8. Substitute equation 3 into equation 2. 2x+ 11-3x= 8 , 11-x=8, x= 11-8, x=3 Substitute x back into equation 3y=11-3x, y= 11-3(3), y=11-9, y=2. Therefore x= 3 and y= 2
KM
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