Solve 10a - 5b = 25 for b.
f) b = 10a + 25
g) b = 10a - 25
h) b = 2a +5
i) b = 2a - 5
What exactly are they asking me to do here? Can I get at least one with a step by step, then I'll do the others? And, then you can check my answers. Thanks :)
see other post
The question is asking you to solve the equation 10a - 5b = 25 for the variable b. In other words, you need to rearrange the equation to isolate the variable b on one side of the equation.
Here's a step-by-step guide to solve the equation:
Step 1: Start with the equation 10a - 5b = 25.
Step 2: To isolate the term containing b, we need to eliminate the 10a term. We can do that by subtracting 10a from both sides of the equation:
10a - 10a - 5b = 25 - 10a.
Simplifying the left side, we get -5b = 25 - 10a.
Step 3: Next, we want to solve for b, so we need to get rid of the -5 coefficient. To do that, divide both sides of the equation by -5:
-5b / -5 = (25 - 10a) / -5.
This simplifies to b = (25 - 10a) / -5.
Step 4: Finally, simplify the expression on the right side:
b = -5 - 2a.
Therefore, the correct answer is i) b = 2a - 5.
Now, you can go ahead and try solving the other options and check your answers.