Answer:
Equivalent systems of equations review
Step-by-step explanation:
We're given two systems of equations and asked if they're equivalent.
x + 4y = 8 (1)
4x + y = 2 (2)
Interestingly, if we sum the equations in System A, we get:
Replacing the first equation in System A with this new equation, we get a system that's equivalent to System A:
This is System B, which means that System A is equivalent to System B.
The answer to the question
6x=15
Then you will divide 6 to each side of the equal sign like so:
6/6x=15/6
Which will then leave you an answer of:
x=2.5
Answer:
i hope this helps! :)
Step-by-step explanation:
given 91 = -1 + 21 + 4
lets combine like terms first 91 = -1 + 25
now add one to both sides 92 = 25
subtract 25 from both sides 67 = 0
there is no solution to this problem