Question

one more... solve the equation for A:
X(A+M)=K+L

Answer 1

X(A+M)=K+L
(A+M)=(K+L)/X
A = ((K+L)/X )- M

Answer 2

X(A+M)=K+L

Divide each term in the equation by X.
(X(A+M))/(X)=(K)/(X)+(L)/(X)

Simplify the left-hand side of the equation by canceling the common factors.
A+M=(K)/(X)+(L)/(X)

Combine the numerators of all expressions that have common denominators.
A+M=(K+L)/(X)

Since M does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting M from both sides.
A=-M+(K+L)/(X)

Simplify the right-hand side of the equation.
A=(-XM+K+L)/(X)

Answer 3

You can't just move the M into the numerator like that, can you?

Answer 4

Elassiam, your answer is confusing me... J-Monstur, yours sounds about right so im gonna go wit it.

Answer 5

*with

Answer 6

You have to understand that on the left of the equation, it was X(A+M). There were brackets around (A+M) meaning that after you diveded X to the other side, A+M is treated like a whole number and can not be put into the denominator.

Ex) X= 5, A = 2, M =3, K=10, L=15
X(A+M)=K+L
When plugged in we can agree that both sides equal to 25 right?

If isolated correctly my equation would mean
A = ((K+L)/X )- M
2 = ((10+15)/5) - 3
2= ((25)/5) - 3
2= 5-3
2= 2

Elassiam's turns out to be the same numbers in the end but I don't understand how she got the equation. It seems to complicate things a little bit but I am interested in seeing how it was derived.

When in doubt sub in numbers and check.