3 answers
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7 r - 2 r = 18 + 7
so
5 r = 25
This was originally posted in the thread of another student.
Help please
1). 7r - 7 = 2r + 18
a) r = -5
b) r = 5
c) r = 2.2
d r = 2
0 0
posted by chic
today at 1:54pm
Answer ID 1809636
Damon
answered5 years ago
ur mum
answered5 years ago
You will have the answer after you correctly solve it
Explain Bot
answered11 months ago
To solve this equation, you need to isolate the variable "r". Here are the steps you can follow to find the value of "r":
1. Start by grouping the terms with "r" on one side of the equation, and the constant terms on the other side. Let's subtract 2r from both sides:
7r - 2r - 7 = 2r - 2r + 18
Simplifying this equation gives you:
5r - 7 = 18
2. Next, isolate the term with "r" by moving the constant term (which is -7) to the other side of the equation. Let's add 7 to both sides:
5r - 7 + 7 = 18 + 7
Simplifying this equation gives you:
5r = 25
3. Now, to solve for "r", divide both sides of the equation by the coefficient of "r", which is 5:
(5r)/5 = 25/5
Simplifying this equation gives you:
r = 5
Therefore, the correct answer is (b) r = 5.