If you want to add or subtract fractions :
1- make sure that the denominators of the fractions are equal. if they are not, then multiply each of them by a number so that they will be equal.
2- add or subtract the numerators.(if you already had multiplied the denominator of a fraction by a number, then you should multiply the numerator by the same number and do the adding or subtracting)
3- simplify it's possible
here are the answers :





good luck
Answer:
this makes no sence
Step-by-step explanation:
<u>Answer:</u>
False
<u>Step-by-step explanation:</u>
The given statement: 'the order in which you perform operations in a numerical expression does not matter' is absolutely false.
The order or sequence in which a mathematical expression is solved does matter a lot. Performing mathematical operations in a different manner will result in different results.
The rule for performing mathematical operation states that a numerical expression should be solved in the following manner:
1. Brackets
2. Of
3. Division
4. Multiplication
5. Addition
6. Subtraction
X+y = 6
x-y = 2
Add both equations,
2x = 8
x = 4
Substitute it in equation 1,
4+y = 6
y = 6-4 = 2
In short, x = 4 & y = 2
Hope this helps!
Y = 3x² - 9x + 12
y' = 6x - 9 = 0
6x = 9
x = 9/6 = 3/2