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Which of the following is a system of linear equations in two variables?

A.

[tex]2x - 7y = 8[/tex]

B.

[tex]3x + 5y = - 2 \\ x - 4y = 9[/tex]

C.

[tex]x + 9y = 2 \\ 2x - 3y > 12[/tex]

D.

[tex]4x + 1 = 8[/tex]

Don't answer if you don't know I don't waste my points on you!​


Sagot :

Answer:

b.3x+5y=_2 or 4x+1=8 i dont think if its correct i hope its help you

Answer:

D.

[tex]4x + 1 = 8[/tex]

Step-by-step explanation:

fist you need to turn it to standard form

move the constant to the right

4x+1=8

will be

4x=8-1

then subtract

4x=7 the standard form is this

now just divide both side by 4

4x/4=7/4

4x/4 any expression divide by it self is equal to 1

so we have

x=7/4

the answer is x=7/4

the equation is for two actually

the first one is y1=4x+1

the the other is y2=8