Question

7x+9y=23 how can we identify it as linear equation in 2 variable
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Answer 1

Step-by-step explanation:

You need to have two equations with 2 variables each and in the following format:

as + by + c = 0

where x and y are variables and a a,b and c real numbers and a and b are not equal to 0

Two or more linear equations having the same variables taken together form a system of linear equations in two variables.

Please find the attachment

Hope this helps u....