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Ainat [17]
3 years ago
7

5x + 3(x + 4) = 7x +12 + x +

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0
3x+4-7x=12

We simplify the equation to the form, which is simple to understand
3x+4-7x=12

We move all terms containing x to the left and all other terms to the right.
+3x-7x=+12-4

We simplify left and right side of the equation.
-4x=+8

We divide both sides of the equation by -4 to get x.
x=-2
koban [17]3 years ago
7 0

Answer:

All real numbers are solutions.

Step-by-step explanation:

5x + 3(x + 4) = 7x +12 + x

All real numbers are solutions.

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