# algebra

posted by .

1/9 -K+3/72k = 1/9k - k-1/8k
i can't figure out how to get rid of the denominators

• algebra -

It is very important to use brackets.
I will assume you meant

1/9 -(K+3)/(72k) = 1/(9k) - (k-1)/(8k)

multiply each term by 72k to get

72k - (k-3) = 8 - (k-1)

I am sure you can take it from there.

## Similar Questions

1. ### physics multiplying vectors

In the product F = qv · B , take q = 4, = 2.0i + 4.0j + 6.0k and = 136i -176j + 72k. What then is in unit-vector notation if Bx = By?
2. ### physics multiplying vectors

n the product F = qv · B , take q = 4, = 2.0i + 4.0j + 6.0k and = 136i -176j + 72k. What then is in unit-vector notation if Bx = By?

In the product F = qv · B , take q = 4, v = 2.0i + 4.0j + 6.0k and F= 136i -176j + 72k. What then is in unit-vector notation if Bx = By?
4. ### precalc

simplify: (x^-2 - y^-2) / (x^-1 - y^-1) i know you have to get rid of the negative powers, but i cant figure out how, any help?

I am solving a problem and someone tol me to use this formula MgH = (1/2)*k*(H-2-10)^2 + Mg*2 where did this equation come from. Its not in my book. What concepts does it use?
6. ### calc

FInd f'(a) for the function, f(x)=(1+2x)/(1+x) lim h->0 ][(1+2(a+h))/(1+a+h)]-[(1+2a)/(1+a)]]/h I got rid of the denominator lim h->0 [(1+2a+2h)(1+a+h)]-[(1+2a)(1+a)]/h =4a+2 What's wrong with this?
7. ### algebra 2

i cant figure out how to solve this? T with two over powe +7T-18+0 so far if figure out T+ but i dunno what
8. ### Algebra

Hi! Today I was absent from my algebra class, and they learned how to recognize and factor the difference of two squares.. I've tried to figure it out from the book, but it's not making any sense... Can someone help?
9. ### College Algebra

7/(x+1) - 3/2 =6/(3x+3) Im not sure how to begin, I thought abou clearing the denominators by multiply everything by (x+1)(2)(3x+3) but that didn't work out.
10. ### Trig verifying identities

I am having trouble with this problem. sec^2(pi/2-x)-1= cot ^2x I got : By cofunction identity sec(90 degrees - x) = csc x secx csc-1 = cot^2x Then split sec x and csc-1 into two fractions and multiplied both numerator and denominators …

More Similar Questions