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if you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation.. . –x + 5y = 1. 2x + 4y = –4. . a. 2(5y – 1) + 4y = –4. . b. 2(–5y + 1) + 4y = –4. . c. 2x + 4(–5y + 1) = –4. . d. 2x + 4(5y – 1) = –4

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bcalle
The answer would be#1

The new equation after the expression equivalent to x from the first equation is substituted into the second equation will be a. 2(5y – 1) + 4y = –4.

What is a system of equations?

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

The system of equations is given as

–x + 5y = 1.

2x + 4y = –4.

if we use the substitution method to solve the following system,

–x + 5y = 1.

From the first equation we can find the value of x as

-x = 1 - 5y

x = 5y - 1

substitue the value of x in the second equation, we get

2x + 4y = –4.

2(5y – 1) + 4y = –4

The new equation after the expression equivalent to x from the first equation is substituted into the second equation will be a. 2(5y – 1) + 4y = –4.

Learn more about equations here;

https://brainly.com/question/27056029

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