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(-7) + 3y + 9 + 2y = 2+ 5y
b)
x-3x+2-2x-7 = -4x - 5
c)
(-5x)+4y-y-7x-9y = -12x -6y
d)
4x+5-x-4+x-3x = x +1
e)
0,5a-2a+9-0,5a-11,5 = -2a - 2,5
b). -4x-5
c). -12x -6y
d). x+1
e). -2a -2,5
b)x-3x+2-2x-7=-4x-5
c)(-5x)+4y-y-7x-9y=-12x-6y
d)4x+5-x-4+x-3x=x+1
e)0,5a-2a+9-0,5a-11,5=-2a-2,5