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3 years ago

3x+4y=-16 and 5x+5y=-5

Mathematics

1 answer:

GuDViN [60]3 years ago

3 0

Answer:

$y=-13,\:x=12$

Step-by-step explanation:

$\begin{bmatrix}3x+4y=-16\\ 5x+5y=-5\end{bmatrix}\\\\\begin{bmatrix}5\cdot \frac{-16-4y}{3}+5y=-5\end{bmatrix}\\\\$

$-\frac{80}{3}-\frac{5y}{3}=-5\\y=-13\\\\x=\frac{-16-4\left(-13\right)}{3}\\x=12$

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Step-by-step explanation:

Concept:

Here, we need to know the order and name of each place value.

Please refer to the attachment below for the specified names.

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STEP ONE: Orde and name each place

2 ⇒ One Thousands

4 ⇒ Hundreds

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3 ⇒ Hundredths

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7 ⇒ Ten Thousandths

STEP TWO: Find the number [8] in the number

As we can see from the list above, 8 is at the right of the decimal point, thus, the place value is Thousandths.

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Step-by-step explanation:

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uranmaximum [27]

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