Question

Calcule o valor numérico de
2x + 3a X=5 e A= -4

Answer 1

2x + 3ax = 5
a = -4
2x + 3 ( -4).x = 5
2x -12x = 5
-10x = 5
10x = -5
x = -5/10
x = - 1/2 ***

Answer 2

2x+3a
Sendo x=5 e a=-4

2.5+3.(-4)
10+(-12)
-2