Author Gashiyabarnes in Mathematics, 07.06.2018

A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.

Answered by D3xt3R

keep the first row as normal, then in the other ones, we can isolate Y and Xnow we can replace at first we can replace the Z to discovery the other value

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