You can do anything you want to one side of an equation.
You'll usually apply an inverse operation to make the side
simpler, for example to get rid of the 'x', or to get rid of the
fractions on that side.
But when you do something to one side of the equation,
you MUST do exactly the same thing to the other side too.
If you don't, then you have changed the equation to a
different one, and the solution to the one you have now
is not the solution to the original one.
Very simple example:
Solve the equation 2x = 2
Correct solution:
Divide each side by 2 : x = 1
Incorrect solution:
Divide the left side by 2 : x = 2
Answer:
-12b² + 6b + 862
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
welcome
Answer:
6x - 4
Step-by-step explanation:
The problem is asking for 4 less than a number times 6. Set this number equal to x, leaving us with 4 less than 6x, or 6x - 4.
Answer:
56.70
Step-by-step explanation:
first determine the tax
45 * 6% = 45*.06 = 2.70
Then determine the tip
45 * 20% = 45*.2 =9
Then add everything together
45+2.70+9 =56.70
