Question

Me podrían ayudar? es para hoy :(​

Answer 1

Explicación paso a paso:

$a) 4x+(7x-2x) = 4x+7x-2x = 11x-2x = 9x\\b) 9m+(5m-3m) = 9m+5m-3m = 14m-3m = 11m\\c) 6m-(4m+5m) = 6m-4m-5m = 6m-9m = -3m\\d)7r-(2r+3r) = 7r-2r-3r = 7r-5r = 2r$

$e) 6b-(3b-4b) = 6b-3b+4b = 10b-3b = 7b\\f) 5x+(3x+9x) = 5x+3x+9x = 17x\\g) 8b-(3b-7b)=8b-3b+7b= 15b-3b = 12b\\h) 4w-(-2w-7w)=4w+2w+7w= 13w$

$i)6t+(4t-8t) =6t+4t-8t = 10t-8t = 2t \\j)7k-(-3k+5k)=7k+3k-5k =10k-5k =5k\\k)4x+(6x-4x)=4x+6x-4x= 10x-4x = 6x\\l)9m+(4m-m)=9m+4m-m = 13m-m = 12m$

$m) 8m-(7m+2m) =8m-7m-2m = 8m-9m = -1m\\n)7r- (4r+2r) =7r-4r-2r =7r-6r = 1r\\o)6b-(5b-7b)=6b-5b+7b = 13b -5b = 8b\\p)5x+(4x+7x) = 5x+4x+7x = 16x$

$q)9b- (4b - 2b) = 9b-4b+2b =11b-4b =7b \\r)9w-(-3w-7w)=9w+3w+7w = 19w\\s)5t+(2t-6t) =5t+2t-6t = 7t-6t = 1t\\t)9k-(-5k+5k)=9k+5k-5k = 14k-5k =9k$

❤"Espero, que te ayude de mucho mi respuesta"❤