Respuesta :
Answer:
6
Step-by-step explanation:
x +y = 8
-x. -x
y = 8 - ×
substitute into the 1st equation
3(8 - x) = 2x - 6
24 - 3x = 2x - 6
+6. +6
30 - 3x = 2x
+3x. +3x
30 = 5x
÷ by 5
x = 6
Answer:
6
Step-by-step explanation:
x +y = 8
-x. -x
y = 8 - ×
substitute into the 1st equation
3(8 - x) = 2x - 6
24 - 3x = 2x - 6
+6. +6
30 - 3x = 2x
+3x. +3x
30 = 5x
÷ by 5
x = 6
