What is the value of x in the solution to the following system of equations? x+y=39 and 3x+4y=136

What is the value of x in the solution to the following system of equations? x+y=39 and 3x+4y=136

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x=-y+39 and -4/3y+136/3

x+y=39 and 3x+4y=136
-y -y -4y -4y
x=38 3x= 132
/3 /3
x= 66

ok thats answer

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