How do I solve this ???

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

Math each whole number with a rational,exponential expression

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.