If it's not what You are looking for type in the equation solver your own equation and let us solve it.
y in (-oo:+oo)
(3/5)*y = -21 // + 21
(3/5)*y+21 = 0
3/5*y+21 = 0 // - 21
3/5*y = -21 // : 3/5
y = -21/3/5
y = -35
y = -35
| x^2/4=8 | | 6(-k-2)=-8(k+2) | | 4k-8=8 | | 3x(x+2)=2x+8 | | -4n+11=-9 | | 4n-6=0 | | x^4-73x^2+576=0 | | 4cos(4x)=0 | | 2(-1)y=1 | | 8x+112=15 | | 4n+11=-9 | | 19x+28=104 | | 6m-5=-25 | | 4z=7-7z | | 5x^3-10=0 | | 7x-9y+10=0 | | 2b+3c= | | n^2-7n-1=-4n | | -5x+10+3x=-2 | | Z^8+2=2 | | x-2/8=5/11 | | 5(w-3)+7=-2(w-5) | | 1+5x+4x=37 | | x^2-2*x-3=0 | | 3x-10+5x-4=90 | | 2g+3(2.75+4g)=2.25 | | 3(x+1)+x^2+6=x^2+12 | | 18c^5*8c^9= | | 3x+15=3-x | | 7x-2=14x-2 | | (x-4)(x-5)(x-6)(x-7)=0 | | 7(x+2)=7(x+11) |