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)
(2/9)*x-3 = 15 // - 15
(2/9)*x-15-3 = 0
2/9*x-18 = 0 // + 18
2/9*x = 18 // : 2/9
x = 18/2/9
x = 81
x = 81
| F(x)=2x^2-6x+2 | | (x+80)+(5x)=90 | | 5x^3-16x^2+17x-10=0 | | (2x-1)(x-4)(x-1)=0 | | 63=w+8w | | 7x+3x-(10x+2)=5+c | | -3(-5)+3y=4 | | x/3.5=-2.15 | | 12xy+20= | | x^2-4x+1.25=0 | | -4(2x-7)=-(-3x+5) | | 15=(12-x)+(9-x) | | 3(2x+11y)= | | 16x+5b=417 | | 15=(12-x)+(9x) | | 1.1k+42z= | | 27+8x=x+3(1+5x) | | 7/10x=200 | | 5x+2+8=x-1-5 | | 0.8h=4.8 | | 8(a+3b)= | | x+(0.06x)=18660000 | | 14v-8v=36 | | 1/6x^2-1/8x=1 | | 2x^4+16x^2+32=0 | | 22+2x=37-6+x | | (1x+y)*z= | | 2x^4+16x^4+32=0 | | 6y+2y-5wheny=3 | | 712=4c | | x+0.06=18660000 | | (5+2y)x= |