7(4 + 5) = 63
28 + 35 fits the criteria for your question.
Distribute -10
-10n - 50 = 40
Add 50 to both sides
-50 + 50 would cancel
- 50 + 40 = -10
Divide by -10
-10/-10 = 1
N=1
If A is your age:
400 - 2A = 244
2A = 400 - 244
2A = 156
A = 78
Simplify them until they can be simplified no more, then compare both sides.
<span>37x^3y^6 and x^6y^2
</span>greatest common factor: x^3y^2
