Find x and y using the system of equations.
3x + 4y = 7
-2x
2 answers
the second equation is -2x + 8y = 10
3x+4y = 7
-2x+8y = 10
double the first equation and now you have
6x+8y = 14
-2x+8y = 10
now subtract and you have eliminated y, giving
8x = 4
and the rest is easy.
-2x+8y = 10
double the first equation and now you have
6x+8y = 14
-2x+8y = 10
now subtract and you have eliminated y, giving
8x = 4
and the rest is easy.
1 answer