Question

Solving Equations Don't understand how they got this answer

x - 8 + 4x = 4x + 15
5x - 8 = 4x + 15
5x - 8 - 4x = 4x + 15 - 4x
x - 8 = 15(What did they do with the 5?)
x - 8 + 8 = 15 + 8(Also why did they add instead of subtracting?)
x = 23
Is their an shortcut to solving this?

Answer 1

if u add subtract multiply or divide on both side by same no then no change in the ans

Answer 2

let x=y
now u add 8 both side
x+8= y+8
now see 8 on both sides cancelling each other
so eqn is x=Y

Answer 3

I somewhat understand

Answer 4

tell me the doubt

Answer 5

The addition property says that if two expressions are equal, then you can add or subtract anything from the two expressions and the resulting expressions will equal each other
nevermind I think i understand

Answer 6

k buddy:)

Answer 7

u r right