Answer:
x = 12
Explanation:
If you're bored of solving equations the normal way, why not try this fun and easy method? Just follow these simple steps:
Subtract 3/10 x from both sides to eliminate the x term on the right side. This is like getting rid of the annoying person who always sits next to you in class.
4/5 x - 3/10 x + 15 = 21
Simplify the left side by finding the common denominator and combining the fractions. This is like putting all your candy in one bag and eating it faster.
(8/10 - 3/10) x + 15 = 21
5/10 x + 15 = 21
Subtract 15 from both sides to isolate the x term on the left side. This is like taking away your allowance and making you do chores.
5/10 x = 21 - 15
5/10 x = 6
Multiply both sides by 10/5 to solve for x. This is like giving you a magic wand that makes everything easier.
(10/5) (5/10) x = (10/5) (6)
x = 12
This is the solution of the equation. You can check it by plugging it back into the original equation and verifying that both sides are equal. Or you can just trust me
✧☆*: .｡. That's all folks, have fun with math! (✧ω✧) .｡.:*☆✧