I assume that you mean
5x + y = -5
-4x + 2y = 2
Cancel the 2s from the second equation
-2x + y = 1
therefore y = 1+2x
Substitute into first equation
5x + 1 + 2x = -5
7x = -6
x = -6/7
Substitute into second equation to find that y = -5/7.
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(-4, -1)
Splitting the equation up into the two variables: x + 4x = 5x -7y + -2y = -9y Therefore, the simplified version is: 5x - 9y
4x - 10 + 5x = 719x = 81x = 9
Wat is a Buddhist temple in South East Asia and has nothing to do with x plus 5 plus 2y plus 4x -2. Incidentally, the algebraic expression is equal to 5x + 3 + 2y.
Multiply the bottom equation by -1