Is this equation solved correctly?

$50.50+ x = $60.50- $3.00 x = $5.50

Step-by-step explanation:

Thanks for clarifying that the question is if $50.50+ x = $60.50- $3.00x equals $5.5?

Now $50.50+ x = $60.50- $3.00 x

Add $3.00x to both sides to get:

$50.50+ x + $3.00x = $60.50 - $3.00 x + $3.00

Which gives;

$50.50 + $4x = $60.50

Subtract $50.50 from both sides to get:

$50.50 - $50.50 + $4x = $60.50 - $50.50

Which gives $4x = $10

Divide both sides by $4 to get;

$4x/$4 = $10/$4

Therefore, x = 2.5

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

the answer is 1/4

step-by-step explanation: