Question

What is the solution to the equation 3 (2 x + 5) = 3 x + 4 x?

A)x = 0

B)x = 4

C)x = 5

D)x = 15

Answer 1

x=15

Explanation:

i took the test

Answer 2

`x=15`

Explanation:

Step 1: Simplifying the equation we can find the value of x.

`3(2 x+5)=3 x+4 x`

Step 2: Multiply 3 with
`(2 x+5)`

`6 x+15=3 x+4 x`x

Step 3: Adding 3x with 4x, which gives the equation

`6 x+15=7 x`

Step 4: Subtracting both sides of the equation by 6x

`\begin{aligned}6 x+15-6 x &=7 x-6 x \\15 &=x\end{aligned}`

Thus, the solution to the equation
`3(2 x+5)=3 x+4 x` is
`x=15`