Answer:
- 5x+3
- x -7
- -x +7
Step-by-step explanation:
Combine like terms. The associative and commutative properties of addition apply, as does the distributive property.
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1. (2x+5)+(3x-2) = (2x +3x) +(5 -2) = 5x +3
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2. (3x-2)-(2x+5) = 3x -2 -2x -5 = (3x -2x) +(-2 -5) = x -7
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3. (2x+5)-(3x-2) = 2x +5 -3x +2 = (2x -3x) +(5 +2) = -x +7
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<em>Additional comment</em>
Note that swapping the order of operands in a subtraction problem (problems 2 and 3) will cause the sign of the result to reverse.
Well you know that half of 10 is 5 so what is half of 6 = 3 so you can buy 3 books with 5 dollars
Answer:

Step-by-step explanation:
I use 'n' as the unknown value, but you can use any letter you want as the variable.
The product of four and a number would be represented by '4 * n'. The ideal way to write this would be '4n', even though '4 * n' is also correct in value.
The square of the number would be n². Squaring a number is multiplying a number by itself.
The phrase 'difference between...' means subtraction.
Putting it together:
"The difference between the product of 4 and a number and the square of the number" would be:

Hope this helps.
Answer:
b 2 to the second -5
Step-by-step explanation:
Answer:
Parallel
Step-by-step explanation:
-y₁ + y₂\-x₁ + x₂ = m


Both <em>rate</em><em> </em><em>of</em><em> </em><em>changes</em><em> </em>[<em>slopes</em>] result in <em>three</em>, therefore both lines are parallel.
I am joyous to assist you anytime.