Question

5c + 8 равно 15c -42

Answer 1

5с+8=15с-42
5с+8-15с+42=0
-10с+50=0
-10с=0-50
-10с=-50
с=-50:(-10)
с=5
Ответ:5

Answer 2

Let's solve the equation for c:

5c + 8 = 15c - 42

To solve for c, we'll need to isolate the variable on one side of the equation. We can do this by performing arithmetic operations to simplify the equation.

Step 1: Move all the terms with c to one side of the equation and the constant terms to the other side.

Subtract 5c from both sides:

5c - 5c + 8 = 15c - 5c - 42

This simplifies to:

8 = 10c - 42

Step 2: Now, let's get rid of the constant term on the right side by adding 42 to both sides:

8 + 42 = 10c - 42 + 42

This simplifies to:

50 = 10c

Step 3: Finally, isolate c by dividing both sides by 10:

50 / 10 = 10c / 10

This simplifies to:

5 = c

So, the solution to the equation is c = 5.