diketahui A=2x-3 dan B=x+2y hitung hasil dari A=2B

Maaf klo salah
Dik : A = 2x-3
B = x+2y
Dit : A=2B
2x-3 = 2 (x+2y)
2x-3 = 2x + 4y
2x-2x - 3 = 4y
-3 = 4y
y = - 4/3

Mencari x
2x-3 = 2(x+2y)
2x - 3 = 2x + 4y
2x - 3 = 2x + 4(-4/3)
2x - 3 = 2x + (-16/3)
2x-2x = - 16/3 + 3
X = - 16/3 + 9/3
X = -5/3

Jadi nilai A=2B
2x-3=2(x+2y)
2x - 3=2x +4y
2(-5/3) - 3 = 2(-5/3)+4(-4/3)
-10/3 - 3 = - 10/3 + (-16/3)
-19/3 = -26/3
= -19/3 × -3/26
= 57/78
19/26