Question #b0e4c

1 Answer
seol
Oct 4, 2017

#-4/15d-8#

Explanation:

Assuming you meant #2/5(d-10)-2/3(d+6)#

Let's apply the distributive property
#[2/5(d)-2/5(10)]-[2/3(d)+2/3(6)]#
#\rArr[2/5d-4]-[2/3d+4]=2/5d-2/3d-8#

Find the common multiple of the denominators ( least common denominator ), which is 5 • 3 = 15
#(2/5xx3/3)d-(2/3xx5/5)d-8/15#
#\rArr6/15d-10/15d-8=-4/15d-8#

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