решите систему уравнения:

x+y=10.
2x+3y=26.

[tex] \left \{ {{x+y=10} \atop {2x+3y=26}} \right. \left \{ {{x=10-y} \atop {2(10-y)+3y=26}} \right. \left \{ {{x=4} \atop {y=6}} \right. [/tex]

2(10-y)+3y=26
20-2y+3y=26
-2y+3y=26-20
y=6

x=10-6
x=4