Asked by miaa

y=-2x+5
2y+4x=10
solve the system ?
Answered by drwls
The two equations are not independent. The first equation can be written
2y = -4x +10
or
2x + 4x = 10
which is the same as the second equation.

There is therefore no unique (x,y) solution. There are an infinite number of solutions.
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