Question

Which value of d is a solution to equation 2.2d + 5.4= 12

Answer 1

Hello!

Answer:

d=3

*The answer must have a positive sign.*

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

First, you multiply by 10 from both sides of an equation.

$2.2d*10+5.4*10=12*10$

Then, you had to refine the problem down.

$22d+54=120$

Next, you subtract by 54 from both sides of an equation.

$22d+54-54=120-54$

Simplify.

$22d=66$

You can also divide by 22 from both sides of an equation.

$\frac{22d}{22}=\frac{66}{22}$

And finally, simplify and solve. You can also divide by the numbers.

$66/22=3$

Final answer: → $d=3$

Hope this helps!

Thanks!

-Charlie

Have a great day!

:)

:D

Answer 2

Answer:

your answer is d=3

Step-by-step explanation:

First you subtract 5.4 from 12 then with that answer (6.6) you are going to divide 6.6 and 2.2 and your final answer is d=3