If it's not what You are looking for type in the equation solver your own equation and let us solve it.
w in (-oo:+oo)
-w/8 = (3*w)/4-21 // - (3*w)/4-21
21-w/8-((3*w)/4) = 0
(-3/4)*w-w/8+21 = 0
21-7/8*w = 0 // - 21
-7/8*w = -21 // : -7/8
w = -21/(-7/8)
w = 24
w = 24
| 6=6-j | | (8.7-3.2)/0.5 | | -5m-9(2+7m)= | | 0.6/10=0.5/x | | (-w/8)=3w/4-21 | | X=17-4*x-2 | | [-2+(-4)]+[6+(-2)]= | | N^3+2n-9n-18=0 | | 2.5p=-12 | | .2x-1=-.4 | | 81*2-20= | | 4(2x-8)=14 | | 6(3)+2y=10 | | 10a^2-10=630 | | 6x-30=2*42 | | 9/4x=-81/16 | | 5p+(2p+5)=-7 | | 17+6(2Y-3)= | | 6.7-2.8=9.5 | | -32=-3f | | 7(4)+4y=4 | | 42x+28yGCF= | | 9/14y=3/4 | | y=.5x-9 | | -12e=26 | | -12=26 | | 46=5u+11 | | 2x-(4-2y)=-12 | | 2x+3(x+5)=10x-30 | | 0.4/1.5=12/n | | 12e=26 | | (7y-6)+7y=3 |