Answer:
Step-by-step explanation:
The last equation has 2 variables
If we double the first equation and subtract the second one from it, we get rid of y and then comparing the new equation with the last one we can easily solve it
<u>Step 1</u>
- 2(2x + y + 3z) = 2*20
- 4x + 2y + 6z = 40
<u>Step 2</u>
- 4x - x + 2y - 2y + 6z - (-z) = 40 - (-11)
- 3x + 7z = 51
<u>Step 3</u>
- 3x + 7z - (3x - 2z) = 51 - (-3)
- 7z + 2z = 54
- 9z = 54
- z = 6
<u>Then finding x</u>
- 3x - 2*6 = -3
- 3x = 12 - 3
- 3x = 9
- x = 3
<u>Then finding y using the first equation</u>
- 2*3 + y + 3*6 = 20
- y + 24 = 20
- y = -4
<u>The answer:</u>
The hundredths place is your answer<span />
Answer:
3
Step-by-step explanation:
It's the same on both sides
Answer:
5/4k^2
Step-by-step explanation:
