the sum of three numbers is 45. the second of the three numbers is three more than twice the first number, x. the third number i

Question

IRINA_888 [86]

3 years ago

6

the sum of three numbers is 45. the second of the three numbers is three more than twice the first number, x. the third number i

s two more than the first number, x. which equation can be used to solve for the first number, x?

Mathematics

2 answers:

TiliK225 [7] · Answer 1 · 2021-11-29T21:27:39+03:00

TiliK225 [7]3 years ago

6 0

Your equation is x + (3+2x) + (2+x) = 45
x being the first number, (3+2x) being the second, and (2+x) being the third.
not sure if i was supposed to try to simplify. hope this helps!!

malfutka [58] · Answer 2 · 2021-11-29T23:12:51+03:00

Answer:

x + (2x + 3) + (x + 2) = 45

Step-by-step explanation:

Here, x represents the first number,

Since, second number is three more than twice the first number,

⇒ Second number = 2x + 3,

The third number is two more than the first number,

⇒ Third number = x + 2

Thus, the sum of these numbers = x + (2x + 3) + (x + 2)

According to the question,

Total sum = 45

⇒ x + (2x + 3) + (x + 2) = 45

Which is the required equation.