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9 votes
9 votes
What's the value f x?

5x-6=3x-8

User Fayeed
by
2.5k points

2 Answers

22 votes
22 votes

Answer:

  • -1

Explanation:

Given equation,

⇒ 5x - 6 = 3x - 8

Subtracting 3x from both sides :

⇒ 5x – 6 – 3x = 3x – 8 – 3x

⇒ 2x – 6 = – 8

Adding 6 to both sides we get :

⇒ 2x – 6 + 6 = – 8 + 6

⇒ 2x = – 2

Dividing both sides by 2 we get :

⇒ 2x/2 = – 2/2

x = – 1

Therefore,

  • The value of x is -1
User Gapur Kassym
by
3.1k points
12 votes
12 votes

Answer:


\sf \boxed{\bold{x=-1}}

Solving Stepwise:


\dashrightarrow \sf 5x-6=3x-8

add 6 on both sides


\dashrightarrow \sf 5x-6+6=3x-8+6

simplify


\dashrightarrow \sf 5x=3x-2

subtract both sides by 3x


\dashrightarrow \sf 5x-3x=3x-2-3x

simplify


\dashrightarrow \sf 2x=-2

divide both sides by 2


\dashrightarrow \sf (2x)/(2) =(-2)/(2)

simplify


\dashrightarrow \sf x =-1

Check for the answer:

insert x = -1


\hookrightarrow \sf 5(-1)-6=3(-1)-8


\hookrightarrow \sf -5-6=-3-8


\hookrightarrow \sf -11=-11

L.H.S = R.H.S. Hence the statement x = -1 is correct.

User Giorgionocera
by
3.3k points