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)
(1/2)*x-7 = 2-y // - 2-y
(1/2)*x+y-7-2 = 0
1/2*x+y-9 = 0 // - y-9
1/2*x = -(y-9) // : 1/2
x = (-(y-9))/1/2
x = 2*(9-y)
x = 2*(9-y)
| 4x-6y-9x+4y= | | 4x-6y-9y+4y= | | 3x+42+x+30=180 | | 5s+10a=2075 | | 5s+10a=300 | | 28n=3(16-4(1-n)) | | -2x+113=-112-11x | | 4-4a+a^2+8+6*a^2+12a+a^3= | | x+7.6=9.46 | | 10+7x=6*-10 | | 2(b+5)-3(b-3)=4 | | 2(x-3)=-3x-31 | | 8x+14=-6(x-7) | | x^2+18x-102=0 | | 1/25? | | 10=5+(x-7)3 | | -4x^2+-16x-3=0 | | 4(2n-5)=3n | | -4x^2+-16x+13=0 | | 4x^2+-16x+13=0 | | -6(w-7)=6w-6 | | -4+12=-8(v-6) | | -4+12=-8(v-8) | | -6(x-5)=-2x+2 | | -5x-6-9+3x= | | -16=-3x+14 | | 3w+36=5(w+8) | | (X-5)+8=100 | | 6(x-1)=9x+18 | | -8x+10=-2(x-8) | | 5(-9x-11)=-550 | | 13/9x=7/3x-4/9 |