Mathematics
Sandi4505
13

25x+10y=24 X+y=20 ? I don't know how to solve systems of equations

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(1) Answers
Genna57

so you have 25x+10y=24 and x+y=20 you can eith er subsitue or add let's add mutliply x+y=10 by -10 -10x-10y=-200 add to first equation 25x+10y=24 -10x-10y=-200 + 15x+0y=-176 15x=-176 divide both sides by 15 x=-176/15 subsitue x+y=20 -176/15+y=20 add -176/15 to both sides y=476/15 solution (x,y) ([latex] \frac{-176}{15} [/latex], [latex] \frac{476}{15} [/latex]

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