Question

F(x)=x+3si g(x)=2x-1. Aflati solutiile reale ale ecuatei 2f(x)+3g(x)=-5

Answer 1

f(x) = x + 3

g(x) = 2x - 1

2*f(x) + 3*g(x) = -5

2*(x+3) + 3*(2x-1) = -5

2x + 6 + 6x - 3 = -5

8x + 3 = -5

8x = -5 - 3

8x = -8

x = (-8) : 8

x = -1