Help me with an answer i'm bad doing maths​

3(x+5)≡3x +a

3x + 15≡ 3x +a ⇒ a=15

I hope you understood!

3(x+5)=3x+a

3x+15=3x+a

a=3x-3x+15

a=+15 ans

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are

ddd

step-by-step explanation: