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It is simply: 7y+46 or 7y-46
4y-7y = -3
7y + 4 - 4 - 9 = 7y - 9
10x-7y=-110x+1=7y-2x -10x-1=-25-12x-1=-25-12x=-24x=-24/-12x=210(2)-7y=-120-7y=-121=7y21/7=yy=3
4 = 25 - 7y if you need the value of y, transpose -7y to the left side (it will become 7y). transpose 4 to the right side (it will become -4) here it is: 7y = 25-4 7y = 21 divide both sides by 7. y = 3 that's all.