Solve the system of equations 4x + 2y = –22 and 4x + 4y = -12 by combining
the equations.

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

Three times the sum of a number and seven is negative thirty-six. what is the number?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?