To solve a formula or equation for a <span>specified variable means to rearrange it so that the variable appears alone on one side of the equal.</span>
Answer:
b=2
Step-by-step explanation:
hope this helps
Simple...
you have: -7=c-6
You want to isolate the variable c
-7=c-6
-7=c-6
+6 +6
-1=c
Thus, your answer.
Answer:
<u>1st graph</u>:
Slope-intercept is y = -7/2x + 3
Point Slope is y + 4 = -7/2(x - 2)
Standard is 7x + 2y = 6
<u>2nd graph</u>:
Slope-intercept is y = 1/2x - 4
Point Slope is y + 2 = 1/2(x - 4)
Standard is x - 2y = 8
<u>3rd graph</u>:
Slope-intercept is y = 3x - 3
Point Slope is y - 3 = 3(x - 2)
Standard is 3x - y = 3
<u>4th graph</u>:
Slope-intercept is y = -2/7x - 4
Point Slope is y + 2 = -2/7(x + 7)
Standard is 2x + 7y = - 28
Step-by-step explanation:
Point Slope formula⤵⤵⤵:

Slope-intercept formula⤵⤵⤵:

Standard formula⤵⤵⤵:

Sorry this took a while, I was doing other stuff for school. I also had to relearn point slope for this, so it took me some time to figure it out. Hope this helps though :)
Answer:
x = 2
Step-by-step explanation:
√(x + 7) − 1 = x
√(x + 7) = x + 1
x + 7 = (x + 1)²
x + 7 = x² + 2x + 1
0 = x² + x − 6
0 = (x + 3) (x − 2)
x = -3 or 2
Check for extraneous solutions:
√(-3 + 7) − 1 = -3
√4 − 1 = -3
2 − 1 = -3
1 = -3
x ≠ -3
√(2 + 7) − 1 = 2
√9 − 1 = 2
3 − 1 = 2
2 = 2
x = 2