Twice a number decreased by 8 is 2 less than half the number. what is the number?

4

Step-by-step explanation:

with th information given we can express the equation:

where is the unknown number.

to clear for first we multiply the equation by 2, to eliminate the fraction:

moving all terms with to the left:

and adding +16 to each side:

and finally, dividing by 3

the number is 4.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.