3 years ago

How do i solve 2(x+4)=5x-2

1 answer:

5 0

=2(5x2+20x-1)
The 2 by the x has to be on top of the x

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Xelga [282]

Answer:

The one with the higher amount they put away

Step-by-step explanation:

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2 years ago

Snowcat [4.5K]

Y+7
Y is the variable and 7 is the constant.

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3 years ago

vivado [14]

Answer:450

Step-by-step explanation:

first subctract then add

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2 years ago

gayaneshka [121]

I could be wrong but I got 28. I devided 420 by 15

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2 years ago

Zolol [24]

Tnemos el sisema de ecuaciones:

$\begin{gathered} 5x+2y=-15 \\ 2x-2y=-6 \end{gathered}$

Podemos resolverlo por eliminación sumando ambas ecuaciones y eliminando y. Asi podemos resolver para x:

$\begin{gathered} (5x+2y)+(2x-2y)=(-15)+(-6) \\ 7x+0y=-21 \\ x=-\frac{21}{7} \\ x=-3 \end{gathered}$

Ahora podemos resolver para y con cualquiera de las dos ecuaciones:

$\begin{gathered} 2x-2y=-6 \\ 2\cdot(-3)-2y=-6 \\ -6-2y=-6 \\ -2y=-6+6 \\ -2y=0 \\ y=0 \end{gathered}$

Respuesta: x=-3, y=0

7 0

11 months ago