What is the solution to the system of equation
3x-6y=-12
x-2y=-8
(a) use substitution method to justify the given system of equation has no solution?
(b) what do you know about the two in the system of equation?

Pls , the question is in the picture!

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4