2х+3у=5 mx+6y=4 помогите

Question

2х+3у=5 mx+6y=4 помогите

Answer 1

3*y=5 - 2*x
y=(5/3) - (2/3)*x
m*x+(6*5/3) - (6*2/3)*x=4
m*x + 10-4*x=4
m*x - 4*x=-6
x*(m - 4)= -6
при m = 4