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)
5*(1-7*x) = -240 // + 240
5*(1-7*x)+240 = 0
5*(1-7*x)+240 = 0
245-35*x = 0
245-35*x = 0
245-35*x = 0 // - 245
-35*x = -245 // : -35
x = -245/(-35)
x = 7
x = 7
| -8(2+4n)=36+7n | | 4(5+6t)=140 | | 5(7+4m)=35 | | 2(-5-4m)=-26 | | 6(6+3k)=-18 | | 6(10+m)=72 | | 9000x-456=32(X+24) | | 3(7w+4)=159 | | 3(-8-n)=-24 | | 3(2a+2)=-54 | | 6(6+4m)=-204 | | 7(-1t+5)=112 | | 4(-5x+10)=-60 | | 3(-7-4t)=-165 | | X+2y=-10 | | 6x-3=9x-6 | | 7(2-4n)=-210 | | 4(-6a-2)=16 | | 2(-3t+10)=-28 | | 3(-2a+9)=51 | | 5(4m-9)=-5 | | 2x-3=77 | | 10x+5=6x+6 | | 3(9-7k)=111 | | 93-7x=72 | | 7(5-5b)=-210 | | 7(6w+8)=350 | | 5(7x+6)=100 | | 3(-5+7x)=-99 | | 23-2m=15 | | 9x+5=3x-10 | | 33+2x=45 |