Help me plsss fast due at 7

2y+7x

5y−7x

=−5

=12

We notice that the first equation has a 7x7x7, x term and the second equation has a -7x−7xminus, 7, x term. These terms will cancel if we add the equations together—that is, we'll eliminate the xxx terms:

\begin{aligned} 2y+\redD{7x} &= -5 \\ +~5y\redD{-7x}&=12\\ \hline\\ 7y+0 &=7 \end{aligned}

2y+7x

+ 5y−7x

7y+0

=−5

=12

=7

Solving for yyy, we get:

\begin{aligned} 7y+0 &=7 7y &=7 y &=\goldD{1} \end{aligned}

7y+0

7y

y

=7

=7

=1

Plugging this value back into our first equation, we solve for the other variable:

\begin{aligned} 2y+7x &= -5 2\cdot \goldD{1}+7x &= -5 2+7x&=-5 7x&=-7 x&=\blueD{-1} \end{aligned}

2y+7x

2⋅1+7x

2+7x

7x

x

=−5

=−5

=−5

=−7

=−1

The solution to the system is x=\blueD{-1}x=−1x, equals, start color #11accd, minus, 1, end color #11accd, y=\goldD{1}y=1y, equals, start color #e07d10, 1, end color #e07d10.

We can check our solution by plugging these values back into the original equations. Let's try the second equation:

\begin{aligned} 5y-7x &= 12 5\cdot\goldD{1}-7(\blueD{-1}) &\stackrel ?= 12 5+7 &= 12 \end{aligned}

5y−7x

5⋅1−7(−1)

5+7

=12

=

?

12

=12

Step-by-step explanation:

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

.there can be infinite values of m and n that can satisfy the above equation. for each value of m of m or n. there maybe infinite sets of solution for the above

step-by-step explanation: