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lidiya [134]
3 years ago
9

This equation has one solution. 5(x – 1) + 3x = 7(x + 1) What is the solution?

Mathematics
2 answers:
bogdanovich [222]3 years ago
5 0
Open up the brackets
5x - 5 + 3x = 7x + 7
Collect like terms
5x + 3x - 7x = 7 + 5
Simplify
8x -7x = 12
x = 12
Therefore, your answer is 12.
TEA [102]3 years ago
3 0

Answer:

x = 12

Step-by-step explanation:

Distribute the parenthesis on both sides of the equation

5x - 5 + 3x = 7x + 7

8x - 5 = 7x + 7 ( subtract 7x from both sides )

x - 5 = 7 ( add 5 to both sides )

x = 12


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