Verified Answer :

You would solve it by setting up a system of equations. P=7o and P=o+870. In the second equation, replace P with 7o and solve for o. 7o=o+870
6o=870
o=145
Plug 145 into p=7o
P=1015

Neuron

an orange ... o grams = ?
a pineapple ... p = 7 o
                        p = 870 grams + o

If you would like to know what is the total weight in grams for the pineapple and orange, you can calculate this using the following steps:

7 o = 870 + o
7 o - o = 870
6 o = 870      /6
o = 870 / 6
o = 145 grams

p = 7 o = 7 145 grams = 1015 grams

Result: A pineapple weights 1015 grams and an orange 145 grams.

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