3x + 3y = 15, color(white)("dd")3x - 5y = -41 what is the answer?

1 Answer
Apr 11, 2018

y=7 and x=-2

Explanation:

Solve simultaneously

3x+3y=15 take x common

x=(15-3y)/3

Put value of x in second equation
That is 3x-5y=-41

So it will be: " "3[(15-3y)/3]-5y=-41

Solve it and find y
15+41=8y" that is "y=56/8 -> y=7

Now in Any Equation put value 7 in place of y

Like 3x+3(7)=15

So x=-6/3 -> x=-2

if you use 2nd equation it will be:
3x-5(7)=-41

3x=-41+35

x=-2

Tony BTony B