06-04-2019
Mathematics

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solve the following system of equations below 4x+y=16 2x+3y=-2

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starlipika starlipika

06-04-2019

answer:

x = 5

y = -4

steps:

4x + y = 16

multiply 2nd equation by 2

4x + 6y = -4

subtract equations

0 -5y = 20

-5y = 20

y = 20 ÷ -5

y = -4

substitute y = -4 to find the value of x

4x + (-4) = 16

4x - 4 = 16

4x = 20

x = 5

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