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3y + x = -1 2x+6=-5y

Quote: Originally Posted by daniegirl 3y + x = -1 2x+6=-5y 1. Solve first equation for x to get x = -1-3y 2. Substitute that value for x into the second equation and solve for y: 2(-1-3y)+6=-5y -2-6y+6=-5y 4 = y 3. Substitute y = 4 into first equation to solve for x: 3(4) + x = -1 12 + x = -1 x = -13