Answer:
1) u > 4
2) 7 < u
3) u < 4
4) 7 > u
Step-by-step explanation:
1) subtract 6 - 2
2) add 3 + 4
3) subtract 4 on both sides (8-4)
4) subtract 9 - 2
The foundational concept of algebra is to use the alphabetical letters to find the unknown number.
Algebra is the concept that uses the alphabetical letters such as x, y, z, etc. to calculate the unknow numbers. here the letters are also called as variables. The values that are known in the expression as termed as constants.
The general operations performed on the algebra is
- Addition = x + y
- Subtraction = x - y
- Multiplication = x * y
- Division = x / y
Here the alphabets x and y are called variables.
Order of operations:
The order of operation in algebra is given as follows
- Perform all the operations inside the brackets
- Perform the operations on roots and exponents
- Perform all the division and multiplication operations moving from left to right
- Perform all the addition and subtraction operations from left to right.
To know mire about Algebra here
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Answer:
the equation for a line is y=MX+b
m= slope(rise/run)
x=variable
b= y intercept
you would find the slope by looking at the rise over run which are both 1 and the line is negative so the slope would be negative one
you would find b by looking at where the y intercept is (y when x is zero) which is 9
y= -x+9
hope that helped
Kendall and Sophia swam (2n - 12) laps together
<em><u>Solution:</u></em>
Given that, Kendall Swam (n) laps in the pool
To find: Number of laps swam together
From given statement,
Number of laps by Kendall = n
Also, Sophia swam 12 less than Kendall
Therefore, number of laps swam by Sophia is 12 less than the number of laps by Kendall
Number of laps by Sophia = Number of laps by Kendall - 12
Number of laps by Sophia = n - 12
<em><u>How many laps did they swim altogether ?</u></em>
Number of laps swam together = Number of laps by Kendall + Number of laps by Sophia
Number of laps swam together = n + n - 12 = 2n - 12
Thus they swam (2n - 12) laps together
