If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
7-((1/4)*x) = 15 // - 15
7-((1/4)*x)-15 = 0
(-1/4)*x-15+7 = 0
-1/4*x-8 = 0 // + 8
-1/4*x = 8 // : -1/4
x = 8/(-1/4)
x = -32
x = -32
| y=-3()-1 | | 2x^3-3x^2-10x-4=0 | | 9x^2+[-3]+5x^2+[7x]+10= | | 10(3x-4)=20 | | 5z^2-6z-8=0 | | 2/5+1=8 | | 40-x=27 | | 49-64v^2=0 | | 2x+5=x-11 | | 2(k+1)=2+2k | | 2(x+5)/3=4x-4 | | 36z^2-25=0 | | 2(x-1)-x/3+1/3=11 | | t^2-16t-40= | | -3(6w-3)+4w=8+2(2w-7) | | 5z^2-17z+14=0 | | 4(2w+3)=52 | | 8/7(10/8) | | 2z^2+z-15=0 | | r/13=-4 | | 6-2(q-3p)=4p | | -30=q-10+1q | | a^2-5a-24= | | 64-9w^2=0 | | 6x^2-19x+12=0 | | 5x=-25+5y | | log(8)(x-6)-log(8)(5)=log(8)(6) | | 5x-4x=7 | | 6m^2-13-28=0 | | ln(6x-11)=0 | | 10/18 | | 4x-3x/7-1/7=-7 |