Answer:
-50
Step-by-step explanation:
-60--10
Answer:
2x+6y = 10
3x+9y = 15
Step-by-step explanation:
We can multiply the equation by 2
2( x + 3y )= 5*2
2x+6y = 10
Or we can multiply by 3
3( x + 3y) = 5*3
3x+9y = 15
Multiplying each side by the same number gives us an equivalent equation
Standard form is
Ax +By = C
Which the equation is already written in
Answer:
X=10
Step-by-step explanation:
Each floor row has 10 seats