Question

If 4x+9y = 60 and 4x+ y = 28 the value of y is​

Answer 1

Answer:

the value of y is 4

Step-by-step explanation:

Let's solve your system by substitution.

4x+9y=60 and 4x+y=28

Rewrite equations:

4x+y=28;4x+9y=60

Step: Solve4x+y=28for y:

4x+y=28

4x+y+−4x=28+−4x(Add -4x to both sides)

y=−4x+28

Step: Substitute−4x+28foryin4x+9y=60:

4x+9y=60

4x+9(−4x+28)=60

−32x+252=60(Simplify both sides of the equation)

−32x+252+−252=60+−252(Add -252 to both sides)

−32x=−192

−32x/−32=−192/−32

(Divide both sides by -32)

x=6

Step: Substitute6forxiny=−4x+28:

y=−4x+28

y=(−4)(6)+28

y=4(Simplify both sides of the equation)

Answer:

x=6 and y=4

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