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What is the value of 6x-5y?

What is the value of 6x-5y?-example-1
User Gcharbon
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1 Answer

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The value of 6x-5y = -31

The given equations are 2x-y=-7 -eq (1)

& 4x=-3y+16 -eq (2)

Multiplying eq (1) with 2 and rearranging to get equation as follows

(2x-y=-7)*2

4x-2y=-14 -eq (3)

Now, subtracting eq (3) from eq (2) to get y.

(4x+3y=16) - (4x-2y=-14)

5y=30

y=5

Substituting y=5 in eq (1) to get x.

2x-5=-7

x=-1

Now to determine 6x-5y substitute obtained values of x & y.

6*(-1)-5(5)=-31

Hence the value of 6x-5y=-31.

#SPJ1

User JDL Wahaha
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