What’s the elimination 7x+4y=-4 5x+8y=28

Ineed to learn how to solve this problem

What is the range? can’t seem to find it out

Merrida uses a pattern in the multiplication table below to find ratios that are equivalent to 7: 9. if merrida multiplies the first term, 7, by a factor of 6, what should she do to find the other term for the equivalent ratio? multiply 9 by 1. multiply 9 by 6. multiply 9 by 7. multiply 9 by 9.