Question

Me ajudem pfv a) 6y-4-+5×= b) 3a-6a-a= c) 7b+4b-6b= d) 8×y-4xy+4×y-8×y= e) -3p-7p+18p=​

Answer 1

$a)6y - 4 - 5 \\ 6y - 9 = 3(2y - 3) = 6y - 9 \\ b)3a - 6a - 1a = (3 - 6 - 1)a = - 4a \\ c)7b + 4b - 6b = (7 + 4 - 6)b = 5b \\ d)8y - 4xy + 4y - 8y = 4y( - x + 1) \\ e) - 3p - 7p + 18p = ( - 3 - 7 + 18)p </p><p>= 8p$

letra e= 8p