15.0k views
4 votes
What is the solution to
25+r = -5(2+8r)+6r

User Kanwal
by
5.0k points

2 Answers

1 vote

Explanation:

25+r = -5(2+8r)+6r

25+r= -10-40r+6r

25+r= -10-34r

34r +r = -25-10

35r= -35

r= -35/35

r= -1

User Ufukgun
by
5.2k points
7 votes

Answer:


\huge\boxed{r=-1}

Explanation:

To solve for this equation, our goal is to isolate the variable r on one side by reversing the equation.

We have the equation
25 + r = -5(2+8r)+6r. Let's simplify it.

Apply the distributive property on the right:


25 + r = (-5 \cdot 2) + (84 \cdot -5) + 6r\\\\25+r = -10 - 40r + 6r

Combine like terms:


25 + r = -10 - 34r

Add 34r to both sides:


25 + r + 34r = -10 - 34r + 34r\\\\25 + 35r = -10

Add 10 to both sides:


25 + 35r + 10 = -10 + 10\\\\35 + 35r = 0

Subtract 35 from both sides:


35 + 35r - 35 = 0 - 35\\\\35r = -35

Divide both sides by 35:


35r / 35 = -35 / 35\\\\r = -1

Hope this helped!

User Killah
by
5.6k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.