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vlabodo [156]
3 years ago
12

Solve for the value of x 3x - 9 + 12 - 6x = -18

Mathematics
2 answers:
Zinaida [17]3 years ago
5 0

Answer:

x=7

Step-by-step explanation:

3x-9+12-6x=-18

now let’s put together the like terms

3-3x=-18

-3x=-21

now we divide -21 By -3

the result is

x=7

8_murik_8 [283]3 years ago
5 0

Answer:

X=7

Step-by-step explanation:

Verification

3(7)-9+12-6(7)=-18\\21-9+12-42=-18\\12+12-42=-18\\24-42=-18

-18=-18

I hope this help.Please give me the brainliest

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Lera25 [3.4K]
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3 years ago
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Natalka [10]

Answer:

A. y = 1 - 2x

The equation y = 1 - 2x is represented by the table.

Step-by-step explanation:

In this question you are trying to find out which is the right equations that belongs to the table of values.

For any streight line, you need the minimum of two points (x,y) to be able to draw a line that accounts for all points on that line...

If you substitute x = 1 in any of the equations, the outcome should be -1 because that is given in the table.

So try it and you will you find solely based on one of the first value that, the equations in A. and C. could be valid, because the point with coordinates (1, -1) is on the line A. and also on C.

At this time you can totally discard equations B an D because the value of y = -1 is not the outcome if you substitute x = 1. You can absolutely cross out answers B an D. Please understand what a timesaver this is; for the next substitution you only need to subsymtitue one extra coordinate (x,y) and you only have to substitute it only in equations A and C.

Try one more point, to choose between answer A and answer C. Just pick the easiest value in the table.

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After substituting another value from the table, you find that only equation A. is valid and not C (and you already discarded answers B an D remember)....

So the equation y = 1 - 2x is represented by the table, which is answer A.

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8 0
3 years ago
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vodomira [7]

Answer:

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Check Work:

1.) 111 + (111 + 1) + (111 +2) = 336

2.) 111 + 111 + 1 + 111 + 2 = 336

3. ) 222 + 1 + 111 + 2 = 336

4.) 222 + 114 = 336

5.) 336 = 336

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