Answer:
x = 4
Step-by-step explanation:
Eliminate y by setting the first equation equal to the second:
2x - 7 = -x + 5
Combining like terms, we get:
3x = 12, so that x must be 4.
Answer:
x=3,-8
Step-by-step explanation:
Answer:
Step-by-step explanation:
first your going to do the least common multiple which is 12 for both then your going to subtract because were trying to find out how many students did there work correctly. so, whatever you do to the denominator you do to the numerator so, its going to be 10/12 - 9/12= 1/12 is your answer.
Due to the margin of error of 10% I would say that then at least 48% wanted the school year lengthened and at least 32% want to keep it the same. I got these figures by subtracting the 10% from the nominal figures to give minimum figures for both.