SOLUTION: My daughter is struggling. Day 1 of Algebra. AX-b = 12.5 What is x

Question 1043836: My daughter is struggling. Day 1 of Algebra.
AX-b = 12.5
What is x
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Isolate X.
Ax-b=12.5
Ax=12.5+b. Move the other variable that can be added or subtracted first.
Now divide by A on both sides, and x is isolated.
x=(12.5 +b)/A
The parentheses are important, for they say that everything inside is divided by A, which is what you want. These problems look strange, because x will not turn out to be some number but a combination of variables. That is fine, so long as it is one X, and nothing else is on that side of the equality.
RELATED QUESTIONS
Please help, my daughter is really struggling in Algebra. The problem we are having... (answered by Alan3354)

I am struggling with some of my Algebra problems. Could you please help me with this... (answered by jim_thompson5910)

Helping my daughter on Algebra. It's been 20 years. 1/2 x = 3 5/6 what is x, and how... (answered by stanbon)

How do you find the slope and y intercept of equations like this! I'm trying to help my... (answered by Theo)

My daughter is struggling in algebra and it has been way to long since I have done it! We (answered by solver91311)

Hi. My daughter is struggling with her maths homework. In particular what is the answer... (answered by Alan3354)

My 8th grader is struggling in pre algebra. Please... (answered by MathLover1)

tim did 10 lunges on day 1 and continued this doing 4 more lunges on each day.on day 7th... (answered by ikleyn)