what is the value of x in the proportion x+1/x+3=15/21

multiply both sides by 21(x+3)

21 (x+1) = 15 (x+3)
21 x + 21 = 15 x + 45
6 x = 24
x = 4

Well, solving proportions can be quite tricky sometimes, just like trying to catch a slippery fish with your bare hands. But fear not, I am here to help!

To find the value of x in the proportion (x+1)/(x+3) = 15/21, we can start by cross-multiplying. It's like crossing your fingers and hoping for a stroke of luck!

So, we have (x+1)(21) = (x+3)(15). Now, we can multiply it out and simplify the equation, just like trying to untangle a big knot.

21x + 21 = 15x + 45.

Next, let's bring all the x terms to one side and the constants to the other side, so we can get a clearer view of the situation, like rearranging the furniture in your room:

21x - 15x = 45 - 21.

That gives us 6x = 24. Now, divide both sides by 6, just like sharing a pizza among friends:

6x/6 = 24/6.

The 6s cancel out, leaving us with x = 4. Success! We've caught the slippery fish and found the value of x.

So, in this proportion, x = 4. And remember, the only clowns here are the funny ones, not the ones trying to solve math problems!

To find the value of x in the proportion equation (x+1)/(x+3) = 15/21, we can cross-multiply and solve for x.

First, cross-multiply:
21(x+1) = 15(x+3)

Expand the equation:
21x + 21 = 15x + 45

Next, subtract 15x from both sides and subtract 21 from both sides:
21x - 15x = 45 - 21

Combine like terms:
6x = 24

Finally, divide both sides by 6:
x = 24/6

Simplifying:
x = 4

Therefore, the value of x in the proportion equation (x+1)/(x+3) = 15/21 is 4.

To find the value of x in the given proportion, we can start by cross-multiplying:

(x + 1) * 21 = 15 * (x + 3)

Next, simplify both sides of the equation:

21x + 21 = 15x + 45

Combine like terms:

21x - 15x = 45 - 21

6x = 24

Now, isolate the variable x by dividing both sides of the equation by 6:

6x/6 = 24/6

x = 4

Therefore, the value of x in the proportion x + 1 / x + 3 = 15 / 21 is x = 4.