f(x)=5x-4 dan g(x)=2+4x cari nilai x apabila 2f(x)=3g(x)

jawab


f(x) = 5x - 4
g(x)= 2 + 4x

2. f(x)  =  3. g(x)
2(5x -4) = 3(2 + 4x)
10x - 8 = 6 +12x
10x - 12x = 6 +8
-2x = 14
x = - 7

2(5x - 4) = 3(2 + 4x)
10x - 8 = 6 + 12x
-2x = 14
x = -7