7-0.75x=-7(3/28x+1) how do I solve that? it's a linear equation.

7-0.75x=-7(3/28x+1)

We simplify the equation to the form, which is simple to understand  

7-0.75x=-7(3/28x+1)

Reorder the terms in parentheses

7-0.75x=+(/28x-7)

Remove unnecessary parentheses

+7-0.75x=+/28x-7

We move all terms containing x to the left and all other terms to the right.  

-0.75x-28x=-7-7

We simplify left and right side of the equation.  

-28.75x=-14

We divide both sides of the equation by -28.75 to get x.  

x=0.48695652173913

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

do you have the measurements?