PLZ HELP What is the solution to the system of equations below?

y = one-half x + 6 and y = negative three-fourths x minus 4
A. (–8, 2)
B. (–8, –1)
C. (8, 10)
D. (8, –10)

Respuesta :

Answer:

A. (–8, 2)

Step-by-step explanation:

The given system is

[tex]y=\frac{1}{2}x+6\\ y=-\frac{3}{4}x-4[/tex]

Let us equate both of them to get:

[tex]\frac{1}{2}x+6=-\frac{3}{4}x-4[/tex]

Multiply through by 4 to get:

[tex]4*\frac{1}{2}x+4*6=4*-\frac{3}{4}x-4*4[/tex]

Simplify:

[tex]2x+24=-3x-16[/tex]

Group similar terms:

[tex]2x+3x=-16-24\\5x=-40\\x=-8[/tex]

Put x=-8 in the first equation:

[tex]y=\frac{1}{2}(-8)+6=-4+6=2[/tex]

The correct answer is A

Answer:

A. (–8, 2)

Step-by-step explanation: