Find the solution.
-1.2x + 11.45 = 8.21

x = -2.7
x = 2.7
x = -4.6
x = 16.4

x = 2.7

Step-by-step explanation:

-1.2x + 11.45 = 8.21

Subtract 11.45 from both sides to get -1.2x = -3.24.

Divide both sides by -1.2 to get x = 2.7.

it is x = 2.7

Step-by-step explanation:

The first step is to move the constant to the right which is 11.45. that way you will perform subtraction between 8.21 minus 11.45. then you calculate that which equals -3.24. then last step, you divide both sides by -1.2.  your welcome:)

a

step-by-step explanation:

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!