What is x and y ? as fast as you can answer this

28/5=x and y=  -6/5

Step-by-step explanation:

solve by substitution

3x+4y=12

Rewrite equations:

2x+y=10;3x+4y=12

Step1: Solve 2x+y=10 for y:

2x+y=10

2x+y+−2x=10+−2x(Add -2x to both sides)

y=−2x+10

Step2: Substitute−2x+10 for y in 3x+4y=12:

3x+4y=12

3x+4(−2x+10)=12

−5x+40=12(Simplify both sides of the equation)

−5x+40+−40=12+−40(Add -40 to both sides)

−5x=−28

-5x/-5=-28/5

(Divide both sides by -5)

x=  28/5

Step3: Substitute

28/5 for x in "y=−2x+10":

y=−2x+10

y=−2(28/5)+10

y=-6/5(Simplify both sides of the equation)

Hope this helps!

i do not know the answer

step-by-step explanation:

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