Question

solving a system of equations solve
4x + 3y = 13
x + 5y = 33

Answer 1

eliminate y first

Answer 2

1. multiply -4 to the 2nd equation
-4(x+5y=33) implies -4x-20y=-132
2. add the 1st equation with the equation from the equation derive in 1 and solve for y.
4x+3y=13
+ -4x-20y=-132
= -17y=-119
implies y=119/17=7
3. substitute y in any of the 2 equation and solve for x.
x+5(7)=33
x=33-35=-2

Answer 3

-20x-15y=-65
3x+15y=99

Answer 4

thnx!

Answer 5

-17x=34
x=-2

Answer 6

then substitute in your original equation to get y