Answer:
x=2 y=1
Step-by-step explanation:
2 a + b = 15.7
Since the sides are equal length, the equation is:
2 · 6.3 + b = 15.7
We can solve it:
12.6 + b = 15.7
b = 15.7 - 12.6
b = 3.1 cm
Answer:
is this a different language?
The addition property of equality states... If a=b then a+c=b+c
The answer in the last one