What Is The Solution To The System Of Equations

Step-by-step explanation:

Given a system of equations, the steps for writing out the general solution are:

Row reduce the augmented matrix for the system.

Write out the equations from the row-reduced matrix.

Solve for the variables that have a leading one in their column.

Label the remaining variables as free variables.

formula

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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a. she will receive a refund of $278.

step-by-step explanation: