If it's not what You are looking for type in the equation solver your own equation and let us solve it.
c in (-oo:+oo)
c-(4/10) = 7 // - 7
c-(4/10)-7 = 0
c-2/5-7 = 0
c-37/5 = 0 // + 37/5
c = 37/5
c = 37/5
| (x+31)+(x+31)+90=180 | | -1274=-14(-8x-37) | | 10x(7x^2+9x+6)=0 | | 7(-13x+12)=-1099 | | 1/2-b/2 | | -2(-x+9)=0 | | 9+21=30 | | 10(h+1)=76 | | 56-21x=-70-23x | | 3(3x)-5(2x)=2 | | -7(10x+3)=469 | | 138/8 | | -620=-250+10x | | y=2x^3+6x^2+11x+8 | | x+34+17x-34+90=180 | | 4xln(x)-8=0 | | (4w-1)w=88 | | (5x+40)+(5x+40)+90=180 | | 7x+87=11x-53 | | 10b^2+27b+15=-3 | | 11-3y/2 | | x-17+90+2x-52=180 | | .125x+3=10 | | 7x-2(-x+18)=72 | | x+31+90+14x-31=180 | | 1/4=9/12 | | .3(-x-1)-.1=.2 | | -3+8=5-1x | | 56+90+17x=180 | | -249+5x=14x+309 | | -.3x-30=60 | | (2x+23)+(2x+23)+90=180 |