Answer:
x = -1
Step-by-step explanation:
5x + 3y = 26
- (6x + 7y = 21)
_________
-x - 4x = 5
-5x = 5
x = -1
Answer:
A rational number is a number that can be represented a/b where a and b are integers and b is not equal to 0.
Find the common denominator.
Multiply everything by the common denominator.
Simplify.
Check the answer(s) to make sure there isn't an extraneous solution.
Answer:
Exact form : r=2squareroot2, -2squareroot2
Decimal form : r=2.8284212...,-2.82842712....
Step-by-step explanation: Take the root of both sides and then solve.
Hope this helps you out.
Answer: The last 3 choices
