Answer:
I think it is supplementary
Answer:
false
Step-by-step explanation:
2+2 is 4 - 1 is 3 QUICK MATHS
Answer: x=5 y=6
Step-by-step explanation: 6y=3× +21
6y-6=2× +20
Opposite sides of the rectangle are equal
Substitute 3x +21 into 6y in the second equation.