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
| -2x=15x | | (x)5=(2)3 | | 2000=mx+b | | -74=6+8x | | p+15.48=5.16 | | 5x+7(x-4)=32 | | 6+2x-2=3(4x-2) | | p+0.08p=37.80 | | 3x+448=715 | | 12x-5=27x+5 | | x/6+3=x/5+6 | | p+0.08=37.80 | | 8n-12=6n+6 | | 35-3n=5(2n+7) | | y=2.50x+500 | | -12+2/3m=-2 | | 23-11c=3-c | | (-3/2)a=15 | | 3m/4+3/8=m/3-5/6 | | -2/9g=7/9 | | 9/10k=1/15-11/14 | | 12-5x-4kx=y | | 6r-4=r+4r-7 | | 7x+8=6(1+x) | | 1.73=k-0.75 | | 39-x=19 | | (x^5-32)-(64x^3-512)=0 | | 7/1/4=15 | | M/0.6=7 | | 28x-8-19x=3(3x-4)+4 | | -53+1/2=14p | | 1/4-k/9=5/36 |