Answer:
The | signs are absolute value signs. Absolute value just makes a negative value turn positive, because technically there is no negative value. For example |-x+5| turns into x+5. If it's already positive, it stays the same. So basically, they're just acting as parenthesis right now. Just distribute the 3 and get 3x+15=7. subtract 17 and get 3x=-8. Divide both sides by three, and you should get x= -8/3. But wait, there's more. Since this is an absolute value equation, there should be more than one answer. Simply make the number on the other side negative. 3x+15=-7. subtract 15 and get -22. Keep going and your answer should be -22/3.
So in conclusion, your two answers are -8/3 and -22/3.
Answer:
Step-by-step explanation:
The equation of a line in slope-intercept form is
y = mx + b
We need to find the slope, m, and the y-intercept, b.
The line we need is perpendicular to the line 2x + y = 8.
<em>The slopes of perpendicular lines are negative reciprocals.</em>
We solve the given equation for y to find the slope of the given line.
2x + y = 8
y = -2x + 8
The given line has slope -2.
The negative reciprocal of -2 is 1/2.
Our line has slope, m = 1/2.
Now we have
y = 1/2 x + b
Now we use the given point, (-2, 3), for x and y, using x = -2, and y = 3, and we solve for b.
y = 1/2 x + b
3 = 1/2 * (-2) + b
3 = -1 + b
4 = b
b = 4
Now we have
y = 1/2 x + 4
Answer:
Answer: 6
Step-by-step explanation:
For the math problem, "45 minus what equals 39?", we can make it into an algebra equation as follows:
45 - X = 39
Then, we solve for X. To solve for X, we first subtract 45 from both sides:
45 - 45 - X = 39 - 45
-X = -6
Next, you multiply each side by -1 to remove the minus from the X:
-X(-1) = -6(-1)
X = 6
Therefore, the answer to "45 minus what equals 39?" is 6 as illustrated below:
45 - 6 = 39
Answer:
its 1
Step-by-step explanation:
