Question

Explain the error in the equation that is written in standard form.
-4x + 3y = 20

Answer 1

Answer/Step-by-step explanation:

Standard form of the equation should be in the form:

Ax + By = C

A, B and C must be whole numbers not fractions or decimals. B and C can be negative, but A must be positive.

Correctly written in standard form, this equation just needs one small tweak, multiply the whole thing by -1 to change all the signs so that the A will be positive.

-4x + 3y = 20

-1(-4x + 3y = 20)



4x - 3y = -20 this is proper standard form.

Answer 2

Edit:

The standard form would be:

3y = 20 - 4x

or

3y = -4x + 20