Question

Is this equation linear or nonlinear? 8p - 7q = 2p - 5

Answer 1

linear means only powers of 1 for the variables, and no cross terms (variables times other variables). If you only see numbers times a variable (with no power), it is linear.

Answer 2

Here is a NON linear equation:
\[8 p^2 -7q = 2p -5 \]
because you have a p^2

Here is another NON linear equation
\[ 8pq -7q= 2p-5 \]
because you have a variable times a variable