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Leonard Farley
Mathematics
23 June, 06:15
How to solve - 7+2x = - 6x - 71
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Cecilia Mays
23 June, 06:23
0
x = - 8
Step-by-step explanation:
to solve this kind of problem is very simple, just be very careful about the negative and positive signs.
-7+2x = - 6x - 71
we will collect the like terms or simply say that you will combine the like terms
we have,
-7 + 2x + 6x = - 71
2x + 6x = - 71 + 7
8x = - 64
divide both sides by 8
8x/8 = - 64/8
x = - 8
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Lucia Carney
23 June, 06:33
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Step-by-step explanation:
-7 + 2x = - 6x - 71
Cancel out the equation to add on to the other side. Anyway works.
If you add or subtract a number from left to right, the other add or subtract needs to be right to left. Vise versa.
-7 + 2x = - 6x - 71
+7 + 6x = + 6x + 7
-7 + 2x = - 6x - 71
+7 + 6x = + 6x + 7
Then you will get: - 8x = - 64
Because X is not by itself, you want to divide the number by itself cancel out ONLY the number and not X. When you cancel out a number, it has to be applied to the whole equation and thus you will get - 64/-8 = Answer
8x = - 64
8 = 8
X = - 8
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