Do you know the distributive law?
In general:
Use it to expand
I'm solving this:
And am trying this way:Code:3 – 7 * (1 - 2x) = 5 – (x + 9)
What should be done in the part I put those question marks?Code:3- 7 * (1 - 2x) = 5 - (x + 9) 3 - 7 ..?? ?? = 5 - x - 9)
I'm really lost.
Thanks in advance for any help.
I was doing:
When I should be doing:Code:3 - 7 * (1 - 2x) = 5 - (x + 9) 3 - 7 * 1 - 7 * (-2x) = ... 3 - (-7) - 14x = ...
Why don't I put -7 inside parentheses?Code:3 - 7 * (1 - 2x) = 5 - (x + 9) 3 - 7 * 1 - 7 * (-2x) = ... 3 - 7 - 14x = ...