What is x?: -8.75x + 14 = -5.25x - 3.5

x=5

Step-by-step explanation:

−8.75x+14=−5.25x−3.5

Step 1: Add 5.25x to both sides.

−8.75x+14+5.25x=−5.25x−3.5+5.25x

−3.5x+14=−3.5

Step 2: Subtract 14 from both sides.

−3.5x+14−14=−3.5−14

−3.5x=−17.5

Step 3: Divide both sides by -3.5.

(−3.5x / −3.5) = (−17.5 / −3.5)

x=5

x = 5

Step-by-step explanation:

Our job here is to "solve for x."  We start by grouping like terms.  Addng 5.25x to both sides results in 3.5x on the right side of our equation.  Adding 3.5 to both sides results in 17.5 = 3.5x.

Finally we divide both sides by 3.5 to solve this equation for x:

x = 5

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

my guess would be b and d, but i didn’t actually get out the pen and paper. lol