If p = 0.75 and q = -1.6, evaluate: p + q - ( -0.7)?

1 Answer
Apr 20, 2016

Answer:

#=-0.15#

Explanation:

Do to this, we'll use a method known as substitution. Basically, (in this case) whenever we see the letter #p# or #q#, we'll replace it with something else.

#p+q-(-0.7)=(0.75)+(-1.6)-(-0.7)#
#=0.75-1.6+0.7#
#=-0.15#

If you need further explanation of substitution, please say so