Answer:45
Step-by-step explanation:
I think you add the exponents im not sure haven't done it in long time
The percentage change is 6.54%
You have to divide 1800÷1926, then multiply by 100 and you'd get 93.46, then subtract 100-93.46 which equals 6.54% :)
21x -15 + 5 = 10x - 5
21x -5 = 10x
11x = 5
x = 5/11
The answer is -4,0 4,8 because u would solve for one variable in one of the equations and then substitute the result into the other
