How do i find x using a mathematical operation?

Solve the system by the elimination method. 3x - 2y - 7 = 0 5x + y - 3 = 0 to eliminate y, the lcm is 2. which of the following is the resulting equations? 1.3x - 2y - 7 = 0 5x + y - 3 = 0 2.3x - 2y - 7 = 0 -10x - 2y + 6 = 0 3.3x - 2y - 7 = 0 10x + 2y - 6 = 0

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

Which ordered pair is a solution of the equation? 2x+3y=10