3c+15=c+7

can you please explain how to do this equation plz :)

c = -4

Step-by-step explanation:

Solve for c:

3 c + 15 = c + 7

Subtract c from both sides:

(3 c - c) + 15 = (c - c) + 7

3 c - c = 2 c:

2 c + 15 = (c - c) + 7

c - c = 0:

2 c + 15 = 7

Subtract 15 from both sides:

2 c + (15 - 15) = 7 - 15

15 - 15 = 0:

2 c = 7 - 15

7 - 15 = -8:

2 c = -8

Divide both sides of 2 c = -8 by 2:

(2 c)/2 = (-8)/2

2/2 = 1:

c = (-8)/2

The gcd of -8 and 2 is 2, so (-8)/2 = (2 (-4))/(2×1) = 2/2×-4 = -4:

c = -4

c = -4

Step-by-step explanation:

3c+15=c+7

Subtract c from both sides

3c - c + 15 = c - c + 7

2c + 15 = 7

Subtract 15 from both sides

2c + 15 - 15 = 7 - 15

2c = -8

Divide both sides by 2

2c/2 = -8/2

c = -4

I hope this was helpful, please rate as brainliest

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).