You can write the two equations x = 4y - 7 and x + y = 93; substitute the value of x into the other equation
(4y - 7) + y = 93; combine like terms
5y - 7 = 93; add 7 to both sides
5y = 100; divide both sides by 5
y = 20; substitute this value into the other equation
x + 20 = 93
x = 73
So the numbers are 20 and 73
Answer: -13
How to: Simplify the expression.
Answer: 0.31
Step-by-step explanation:
7/22 is 0.31
1/2 + 2/5 = 5/10 + 4/10 = 9/10
