Without the answer choices, its hard to say for sure. However, it seems like you're dividing both sides by 5 to isolate x. So your teacher is most likely aiming for "division property of equality". Alternatively, you can multiply both sides by 1/5 = 0.2 to achieve the same result. So you're also using the multiplication property of equality. Note: division and multiplication are very closely related operations.
16 x8 will be the new lenth!
Answer:
and 20.5x
and 6.2y
Step-by-step explanation:
-3-x/5+6.2y+20.5x-3/8y
![-3-\frac{x}{5}+6.2y+20.5x- \frac{3}{8} y](https://tex.z-dn.net/?f=-3-%5Cfrac%7Bx%7D%7B5%7D%2B6.2y%2B20.5x-%20%5Cfrac%7B3%7D%7B8%7D%20y)
We are given an expression with 5 terms
The terms that has same variables with same exponent are like terms. WE combine only like terms. Constants are also like terms.
In the given expression , the fractions
and 20.5x have same 'x' . so they are like terms. we can combine these terms.
the fractions
and 6.2y have same 'y' . so they are like terms. we can combine these terms.
2x²+13x-45 =(x+9)(2x-5)
3/(x+9)=[3(2x-5)]/[(x+9)(2x-5)]=(6x-15)/(2x²+13x-45)