Question

4 (a+3)=36 show all steps

Answer 1

`4(a+3)=36`
Delete the parentheses, multiplying with the number of outside, making the set of signals

`4a + 12 = 36`

Number with incognito are to the left of the equality and numbers without incognito are to the right, remembering that when changing of side changes the signal.


`4a = 36 - 12`

`4a = 24`

`a = (24)/(4)`

`\boxed{a = 6}`

Confirm that the solution is correct:

`4(a+3)=36`

`4(6+3)=36`

`4(9)=36`

`36=36` (TRUE)

Answer:

`\boxed{a = 6}`