連立方程式(かっこ2)
連立方程式を解け
6(2x+y)=16 3x+7y=15-8x+5y=24 -6(3x-2y)=57x=-5y-1 10(-x+y)=343(3x-y)=23 -5x+6y=-74x-3y=18 5(6x+7y)=2y-1310x-6y=3(2x-y)+16 4x+3y=22x-3y=7x-23 3(x+5y)=-2y-95(x+4y)=4x+25 4x+11y=8-5(2x-y)=10x-y+30 7x+y+12=3x-5y-4x=2(-7x+3y)+13 2x-3y=17x+13y=3(x+y)-5 11x-5y=-5x+22-3(x+6y)=-7x+3 4x-9y=2