Answer:
Step-by-step explanation:
Its when they add X's/ Y's in the math problem aka a variable. And they use other symbols of equations and formulas. I hope this is what your looking for have a nice day!
-4.4793767688E10 i think
Mai is correct
..
Step-by-step explanation:.
2b - 6 = -4
2b = -4 + 6
2b = 2
b = 2/2
b = 1