If it's not what You are looking for type in the equation solver your own equation and let us solve it.
f(-3.9)=0
We simplify the equation to the form, which is simple to understand
f(-3.9)=0
Reorder the terms in parentheses
+(-3.9f)=0
Remove unnecessary parentheses
-3.9f=0
We move all terms containing f to the left and all other terms to the right.
-3.9f=0
We simplify left and right side of the equation.
-3.9f=0
We divide both sides of the equation by -3.9 to get f.
f=-0
| -2x^3-11x-6=0 | | 7x+5=6x+5 | | 14m^4-12m=0 | | g=2f+fpt | | -24=-.8 | | P(x)=R(x)-C(x) | | 7x+4=x+4 | | 5(-3.9)-6= | | 2x(4+3)=3x+4 | | 6x+12x-48=0 | | 5a+3=2a-7 | | 5(4)-6= | | 7(2+2x)=112 | | 6a^2-5a^3=0 | | B-(-4)=4 | | 3-3(5x+2)=2(3-6x) | | 3-3*6+2=0 | | 11X+1=10X+2 | | 2x+x+(-2)=-2+(-x)+(-1) | | 5(4+x)=55 | | 22x+2-90=0 | | 0.009t-3.6=1.44 | | 14x^2-43=-34y^2 | | Xsquare-8x=16 | | -5(4n+3)=10 | | f(1.75)=4(1.75)-7 | | 5(4+x)=112 | | 4(9)-4x=20 | | f(1.75)=4(1.75) | | 14x^2+34y^2=43 | | 36+6y=2y | | 4(12+-1y)+10y=11(12+-1y)+5y |