Can you solve the substitution solution of 9x plus 3y equals -68 and -2x plus y equals 18 an give order of pairs?

Anonymous

∙ 15y ago

Updated: 10/17/2024

9x+3y=-68

-2x+y=18

We are asked to solve with substitution so we first write y=18+2x.

Let us substitute this into the first equation.

9x+3(18+2x)=-68

9x+54+6x=-68

15x=-68-54=-122

so x=-122/15

and y =18+2(-122/15)==18+-244/15=270/15-244/15=26/15

So the solution is (-122/15,26/15) which is an ordered pair.

Wiki User

∙ 15y ago

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