ACT Math 2.1 Pre-Algebra
ACT Math: Pre-Algebra Drill 2, Problem 1. Solve for x in this equation.
|Foreign Language||Arabic Subtitled|
|Pre-Algebra||Linear equations in one variable|
Simple linear equations with one variable
|Product Type||ACT Math|
We just combine terms to simplify and we're there...
...wherever there is....but okay we have 3x, 7x which we can add
to get 10x. We can subtract 9 from both sides
35 -9 is 26, so we have 10x equals 26.
Now divide both sides by 10
and X equals 26 over 10. Done.
Wait...not done...there's no 26 over 10 in the answers.
What did we do wrong? Well, we need to reduce.
10 and 26 are even numbers
so if nothing else we can divide 2 into each of them evenly
and getting now reduced 13 over 5 which ta-da
is here. Answer C.