If it's not what You are looking for type in the equation solver your own equation and let us solve it.
f(-1)=8(-1)+2(-1)
We simplify the equation to the form, which is simple to understand
f(-1)=8(-1)+2(-1)
Reorder the terms in parentheses
+(-1f)=8*(-1)+2*(-1)
Remove unnecessary parentheses
-1f=+8+*(-1+)+2+*(-1+)
Reorder the terms in parentheses
-1f=+(-8)+2*(-1)
Remove unnecessary parentheses
-1f=-8+2+*(-1+)
Reorder the terms in parentheses
-1f=-8+(-2)
Remove unnecessary parentheses
-1f=-8-2
We move all terms containing f to the left and all other terms to the right.
-1f=-8-2
We simplify left and right side of the equation.
-1f=-10
We divide both sides of the equation by -1 to get f.
f=10
| f(-1)=8(0)+2(0) | | x^2+9x-322=0 | | -y+7=2-3y | | 1x-4(4-6x)=19 | | f(0)=-13(0)+5(0)-2(0)+8 | | 25y^2=1 | | 100-20m+m^2=0 | | x(30-2x)(30-2x)= | | (2x^4+3x^2+7)-(3x^4-9x^2-4x+4)= | | 0=x^5-3x^4-9x^3+25x^2-6x | | (x^2)+40x+40=4x+4 | | f(-1)=5(-1)-4(-1)+2 | | (2x^4+3x^2+7)-(3x^3+9x^2-4x+4)= | | 3x^2-2+2sinx=0 | | f(x)=x^2+8x+13 | | -20x+8+13x-15= | | 8t-10=30 | | 4.3x-3.2=x+3.6 | | (2x^4+3x^2+7)-(3x^3+9x+4)= | | 3y+11=5(y-3) | | 2x^3-3x^2-3x-5=0 | | 12Y=5(3Y-8) | | (2x^4+3x^2+7)+(3x^3+9x+4)= | | n^2+n=240 | | x-4(2x+y)=5 | | r^2+r=462 | | (3x^3+4x+8)-(-2x^4+3x^2+7)= | | -7(-3)-[(2)3-(3-4)]= | | (2x+3)2+2x=36 | | 0.5y-6=-11 | | 3w-5y=14 | | 2x(x-4)=5 |