If it's not what You are looking for type in the equation solver your own equation and let us solve it.
21=-2z+7z
We simplify the equation to the form, which is simple to understand
21=-2z+7z
We move all terms containing z to the left and all other terms to the right.
+2z-7z=-21
We simplify left and right side of the equation.
-5z=-21
We divide both sides of the equation by -5 to get z.
z=4.2
| 3n^2+13n+4= | | 6x+3y=3807 | | 22x-17=12x+3 | | 12m+13m+m^2=0 | | 5+2.1666x=24.5 | | 5a^2-8a-4= | | -2x+7y=17 | | 19=2(3s+5) | | Y=x+4.5intableformy | | 5+2.166x=11.5 | | -12[k+4]=60 | | 2x-5=-3x+13 | | 3(2y+3)=45 | | 2w^2+7w+3= | | (n-4)(n-5)(n-6)(n-7)(n-8)(n-9)(2+n)(n-1)(n-2)(n-3)=0 | | 8x+10+2x+x+5=180 | | 2s-3=6 | | 2s-5= | | sin(4x)=0.8 | | (5b-4)(6b+6)=0 | | -22x-4=8 | | 2(4-3z)=-7 | | -5(2z+7)=9 | | (n-4)(n-5)(n-6)(n-7)(n-8)(3+n)(2+n)(n-1)(n-2)(n-3)=0 | | 3y+6y^2-9= | | -16=-7x+19 | | 6(y+2)=8 | | (n-4)(n-5)(n-6)(n-7)(4+n)(3+n)(2+n)(n-1)(n-2)(n-3)=0 | | y^2=-8x+12 | | 2x^2-4x-10= | | 39=7x+2x^2 | | 8x-4=3(x+4)+5x |