連立方程式(かっこ4)
連立方程式を解け
4(2x-5y)=-4x-7y-22 2(5x+2y)=7x+9-3(2x+4y)=2(9x-5y)+4 6(3x-2y)=-14y-1x=-12y+2 -3(-2x+y)=4(x-5)+63(3x-y+1)=-5(x-3y) 2x+3y=8x-54x-9y=2(7x+y)-14 y=6x-162(5x-2y)=3(3x+2y)+23 x=2(-5y-1)-32(3x-4y)=6(x-y)+3 3(5x+1)=2(-7y+9)+195(x+4y)=2(2x+6y+7)-5 6x+11y=5(3x+y)+23-5(2x-y)=2x-3y-2 -3x+y-1=3(5x-4y-2)-8x=2(-2x-3y)+5 7(2x-3y)=2x-234(2x+6y)=3(2x+7y)-1 5(-3x-4y)=7(-3x-5y)-31-5(7x+6y+1)=9(-3x+y)+4 3(4x-7y-1)=2(8x-9y)-4