asked 165k views
4 votes
5x−2+x=9+3x+10 what is x

asked
User Yahe
by
8.4k points

2 Answers

5 votes

Answer:x=7

Step-by-step explanation:Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

5*x-2+x-(9+3*x+10)=0

Step by step solution :

STEP

1

:

Pulling out like terms

1.1 Pull out like factors :

3x - 21 = 3 • (x - 7)

Equation at the end of step

1

:

STEP

2

:

Equations which are never true:

2.1 Solve : 3 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

2.2 Solve : x-7 = 0

Add 7 to both sides of the equation :

x = 7

One solution was found :

x = 7

answered
User Dmitry Ognev
by
9.0k points
3 votes
Answer x = 7

Step by step

5x−2+x=9+3x+10
First we combine like terms
We cannot add variables with constants!

(5x + x) -2 = 3x + ( 9 + 10)
Simplify

6x -2 = 3x + 19

Subtract 3x from both sides to combine variables

6x -3x -2 = 3x - 3x + 19
Simplify

3x -2 = 19
Add 2 to both sides to combine constants

3x -2 +2 = 19 +2
Simplified

3x = 21

Divide both sides by 3 to solve for x

3/3 x = 21/3

x = 7 is your answer
answered
User Rohit Falor
by
8.0k points

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