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goblinko [34]
4 years ago
15

Is -5 a solution to the equation for 6x + 5 = 5x + 8 + 2x? Explain?

Mathematics
1 answer:
grigory [225]4 years ago
8 0

For this case we have the following equation:

6x + 5 = 5x + 8 + 2x

We must find the solution.

We add similar terms from the right side of the equation:

6x + 5 = 7x + 8

We subtract 5 from both sides of the equation:

6x = 7x + 8-5\\6x = 7x + 3

We subtract 7x on both sides of the equation:

6x-7x = 3

Different signs are subtracted and the sign of the major is placed:

-x = 3

We multiply by -1 on both sides of the equation:x = -3

Thus, the solution of the equation is x = -3. -5 is not a solution to the equation.

Answer:

x = -3. -5 is not a solution to the equation

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x = 6

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Step-by-step explanation:

to solve this system of equation we say let

2x + 3y = 15 .......................... equation 1

x - 3y = 3.................................. equation 2

from equation 2

x - 3y = 3.................................. equation 2

x = 3 + 3y.................................... equation3

substitute for x in equation 1

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