What is the answer to 7x-5x+15=x+8 ?

The answer to 7x-5x+15=x+8 is x=-7

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7x-5x+15=x+8

7 x - 5 x + 15 = x + 8

x = - 7

Solution steps

7 x - 5 x + 15 = x + 8

Add similar elements:

7 x - 5 x = 2 x

2 x + 15 = x + 8

Move

15

to the right side

2 x = x - 7

Move

x

to the left side

x = - 7

x^{3} - 11 x^{2} + 43 x - 65

b \cdot 2 = \frac{b}{2}

40 x^{2} - 17 x - 12

x^{2} - 8 x + 16

c^{2} - 18 c + 81