## Given the system of equations, what is the x-coordinate of the solution? y = 3 – 1/2x 3x + 4y = 1 A) 22

Question

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## Answers ( No )

Answer:-11 😉

Step-by-step explanation:Answer: Choice C) -11———————————–

Explanation:

The first equation given is y = 3 – 1/2x

In other words, y is the same as 3 – 1/2x.

We can replace y in the second equation with 3 – 1/2x

This is known as substitution (think of a substitute teacher who is a temporary replacement for your teacher)

Doing this leads to…

3x+4y = 1

3x+4*y = 1

3x+4*( y ) = 1

3x+4*( 3 – 1/2x ) = 1 <<— y has been replaced with 3-1/2x

3x+4*(3) +4*(-1/2x) = 1

3x+12-2x = 1

3x-2x+12 = 1

x+12 = 1

x+12-12 = 1-12 <<– subtracting 12 from both sides

x = -11Which is why

the answer is choice C) -11