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2 years ago

What is the answer to the equation -7x-3x+2= -8x - 8

Mathematics

2 answers:

timama [110]2 years ago

7 0

Answer:

x=5

Step-by-step explanation:

-7x-3x+2= -8x - 8

Add like terms

-7x-3x=-10x

-10x+2=-8x-8

+8x +8x

-2x+2=-8

-2 -2

-2x=-10

Divide by -2 to isolate the variable

x=5

Zarrin [17]2 years ago

5 0

Answer:

Step-by-step explanation:

what is the answer to the equation

-7x - 3x + 2= -8x - 8

-7x - 3x + 8x = -10

2x = -10

x = 5

----------------------

check

-7 * 5 - 3 * 5 + 2 = -8 * 5 - 8

-48 = -48

the answer is good

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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2 years ago

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ki77a [65]

Answer:

350 Douglas fir, 500 Ponderosa pine

Step-by-step explanation:

Let f = the number of fir trees

and p = the number of pine trees.

Then, we have two conditions:

(1) f + p = 850

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(3) p = 850 -f Subtracted f from each side of (1)

(4) 300f + 225(850 - f) = 217 500 Substituted (3) into (3)

300f + 191 250 - 225f = 217 500 Distributed 225

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