Question

Identify the solution(s)of the system of equations,if any 3x+2y=4, 5x-4y=3

Answer 1

Take one of the equations, isolate the x or the y, then substitute it into the other equation. x=(3+4y)/5; 3[(3+4y)/5] + 2y = 4. Solve for y, then plug it back into the original equation.

Answer 2

why not just double the 1st equation and add it to the 2nd equation. This eliminates y.

6x + 4y = 8
5x - 4y = 3
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11x = 11


solve for x.

When you have x, substitute the value into either equation to find y.

Answer 3

That works as well, just a different method. You can use substitution or elimination.