1.8k views
5 votes
(1) 3x + 9 and 5x + 15​

User Tephyr
by
8.9k points

2 Answers

2 votes

Answer:

x=

-12

Explanation:

Simplifying

3x + -9 = 5x + 15

Reorder the terms:

-9 + 3x = 5x + 15

Reorder the terms:

-9 + 3x = 15 + 5x

Solving

-9 + 3x = 15 + 5x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-5x' to each side of the equation.

-9 + 3x + -5x = 15 + 5x + -5x

Combine like terms: 3x + -5x = -2x

-9 + -2x = 15 + 5x + -5x

Combine like terms: 5x + -5x = 0

-9 + -2x = 15 + 0

-9 + -2x = 15

Add '9' to each side of the equation.

-9 + 9 + -2x = 15 + 9

Combine like terms: -9 + 9 = 0

0 + -2x = 15 + 9

-2x = 15 + 9

Combine like terms: 15 + 9 = 24

-2x = 24

Divide each side by '-2'.

x = -12

Simplifying

x = -12

User Jirka
by
7.7k points
3 votes

Answer:

(1)3(x+3)

(2)5(x+3)

Explanation:

(1) common taking

(2) common taking

User Himani Agrawal
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.