Solve 5(2y+1)=4y+10. this is for algebra 1

Step-by-step explanation:

So we have the equation:

First, let's distribute the left side of our equation:

Multiply:

Now, let's isolate the y-variable. Subtract 4y from both sides:

The right side cancels. Subtract on the left. So:

Now, subtract 5 from both sides:

The left side cancels. Subtract on the right:

Now, divide both sides by 6. So:

The left will cancel. Therefore:

And we're done!

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

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!