8r+7r=75
(8+7)r=75
15r=75
Can you find r?
75
joking its hold on.............. 15r=75
here you go
To solve the equation 8r + 7r = 75, you need to combine like terms on the left side of the equation and then isolate the variable 'r'. Here's how you can do it step by step:
1. Start with the given equation: 8r + 7r = 75.
2. Combine the like terms on the left side, which means adding the coefficients of 'r': 8r + 7r = (8 + 7)r = 15r.
3. Now we have the simplified equation: 15r = 75.
4. To isolate 'r', divide both sides of the equation by 15: (15r) / 15 = 75 / 15.
5. Simplify: r = 5.
So the solution to the equation 8r + 7r = 75 is r = 5.