4x+7x = (4+7)x = 11x
21y-11y = (21-11)y = 10y
1,5x+7x+x = (1,5+7+1)x = 9,5x
35x+14 = 7(5x+2)
25y²+10y = 5y(5y+2)
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4x+7x = (4+7)x = 11x
21y-11y = (21-11)y = 10y
1,5x+7x+x = (1,5+7+1)x = 9,5x
35x+14 = 7(5x+2)
25y²+10y = 5y(5y+2)