Answer:
1. 3x+3y=9 since it is a coinciding line.It is equivalent because all the terms are multiplied by 3 from the original equation.
2. x-4=3x+4
x=3x+8
-2x=8
x=-4
y=-4-4
y=-8
please mark me brainlyest <i cant spell it i think i spelled it wrong lol >
Answer: 31700 sq mi
Step-by-step explanation: Well in order to find out the sq mi for Lake Superior you will add 7340 and 24360 which equals 31700 sq mi.
Answer:
20.39
Step-by-step explanation:
35.99 – 15.6 = 20.39
Like terms must have the same variables and those variables must have the same powers.
and 
are like terms, because they both have 
and they both have 
.
and 
are NOT like terms, because the powers no longer match.
In your example, do you have the same variables and do the variables have the same powers in both expressions?
