3 years ago

ILL GIVE BRAINLIST ON WHOEVER GETS RIGHT

Mathematics

2 answers:

iren2701 [21]3 years ago

7 0

Answer:

(2, –3) is a solution to the system of linear equations.

Step-by-step explanation:

3x - y = 9

4 x + y = 5.

Add the equations

7x = 14

x = 2

Substitute it back into either original equation to find x

3(2) - y = 9

6 - y = 9

y = -3

4(2) + y = 5.

8 + y = 5

y = -3

x = 2

y = -3

(2, -3)

(2, –3) is a solution to the system of linear equations.

Gennadij [26K]3 years ago

7 0

Answer:

its c

Step-by-step explanation:

i took the test.

You might be interested in

Ln (x-2) +ln (2x-3)=2ln x

goblinko [34]

$D:x-2\ \textgreater \ 0 \wedge 2x-3\ \textgreater \ 0 \wedge x\ \textgreater \ 0\\
D:x\ \textgreater \ 2 \wedge x\ \textgreater \ \dfrac{3}{2}\wedge x\ \textgreater \ 0\\
D:x\ \textgreater \ 2\\\\
\ln (x-2) +\ln (2x-3)=2\ln x \\
\ln (x-2)(2x-3)=\ln x^2\\
(x-2)(2x-3)=x^2\\
2x^2-3x-4x+6=x^2\\
x^2-7x+6=0\\
x^2-x-6x+6=0\\
x(x-1)-6(x-1)=0\\
(x-6)(x-1)=0\\
x=6 \vee x=1\\
1\not \in D\\
\boxed{x=6}$