Answer: #1: -x + 5 #2: 6x - 3y
Step-by-step explanation:
<u><em>Question:</em></u>
(4x - 3) - (5x - 7)
Distribute Negative
(4x - 3) + (-5x + 7)
Add like terms
<em><u>Final Answer:</u></em>
-x + 5
<em><u>Question:</u></em>
4x - (3y - 2x)
Distribute Negative
4x + (-3y + 2x)
Add like terms
<em><u>Final Answer:</u></em>
6x - 3y
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Answer:
x×5/8=m
Step-by-step explanation:
dhdxhxhbdbrhdhdndbxhddbbx
Answer:
The solution to the equation system given is:
- <u>x = 2</u>
- <u>y = -1</u>
Step-by-step explanation:
First, we must know the equations given:
- 2x + 3y = 1
- 3x + y = 5
Following Crammer's Rule, we have the matrix form:
Now we solve using the determinants:
Now, we can find the answer which is x= 2 and y= -1, we can replace these values in the equation to confirm the results are right, with the first equation:
- 2x + 3y = 1
- 2(2) + 3(-1)= 1
- 4 - 3 = 1
- 1 = 1
And, with the second equation:
- 3x + y = 5
- 3(2) + (-1) = 5
- 6 - 1 = 5
- 5 = 5
Answer:(2x + 9i)(2x - 9i)
Step-by-step explanation:
a^2 - b^2 = (a+b)(a-b)
a^2 + b^2 = (a+bi)(a-bi) = a^2 + abi - abi - b^2 i^2
But -b^2 i^2 = +b^2
yea just put a line over the 0 to indicate it's infinite