Q: How to solve e to the power of 3x plus 5e to the power of x equals 7?

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3

x = -8

x=7

23

x2 plus 3x plus 3 is equals to 0 can be solved by getting the roots.

-3x + 5 = 20 -3x = 15 x = -5

3x + 2y = 12 ie 2y = 12 - 3x so y = 6 - 3x/2

x = 6

x = -8

7x = 3x - 12 4x=-12 x=-3

x = 5, y = -1

3x + 4= 7 3x= 7-4 3x/3 = 3/3 x=1