hello. your answer is -3. I just took the assignment. hope it helps.
<h2>
Therefore x=2 and y= 1</h2>
Step-by-step explanation:
Given equations are
and
.........(2)
⇒
.......(1)
Equation (2)× 3 - Equation (1)

⇔
⇔-10y = -10
⇔y=1
Putting the value of y in equation (1) we get

⇔x =2
Therefore x=2 and y= 1
Answer:
7.5in³
Step-by-step explanation:
1x5x1.5=7.5
The most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.
<h3>What are parentheses?</h3>
In mathematics, parenthesis is used to arrange numbers in the sequence of operations, clarify numbers, and denote multiplication.
Suppose you have an expression as:-
E = { ( 5-2 )8} 6
In this case, you would calculate 5 minus 2 first (parentheses), then multiply by 8 (brackets), then complete the part inside the curly braces, and finally multiply by 6.
Therefore the most basic and common reason to use parentheses, brackets, and braces is to control the order of operations.
To know more about parentheses follow
brainly.com/question/1778745
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