Answer:
x = 55
Step-by-step explanation:
(x - 14) + 99 + 220 = 360
x - 14 + 99 + 220 = 360
x - 14 + 319 = 360
x + 305 = 360
x = 360 - 305
-TheUnknownScientist
Questions:
(a) What is a simplified expression for (x + y) – (x – y)?
(b) Carlotta thinks that is the same as . Which statement shows that it is NOT the same?
Solving (a):
Given
Required
Simplify
Open brackets
Collect Like Terms
Solving (b):
and
Which expression shows they are not the same
The expression that shows this is:
Take for instance; y=2
Substitute 2 for y in
Evaluate all exponents
The above expression supports
-2.16 repeating
Convert the fraction to a decimal by dividing the numerator by the denominator.