If it's not what You are looking for type in the equation solver your own equation and let us solve it.
t in (-oo:+oo)
0.57*((2/5)*t+2.4) = 0.57 // - 0.57
0.57*((2/5)*t+2.4)-0.57 = 0
0.57*(2/5*t+2.4)-0.57 = 0
0.57*(2/5*t+2.4)-0.57 = 0
0.228*t+0.798 = 0
0.228*t+0.798 = 0
0.228*t+0.798 = 0 // - 0.798
0.228*t = -0.798 // : 0.228
t = -0.798/0.228
t = -3.5
t = -3.5
| m^2+10=0 | | -3x^2+8x-11=0 | | 2*x^2-3*x=2700 | | a-29=15 | | 10x^2-2x=1575 | | 12:m=1/4 | | -2/3t-3=-5 | | 2/7=0.2(c-1) | | -2/3t-2=-3 | | -x^2+6x^2-9=0 | | 3x+60=22 | | 3x+60=-22 | | 3x+60=-20 | | x+16/x=8 | | 2x+20+6x+40=90 | | 45-5d=5(9-d) | | x/12=y/8 | | 9x-4y=7 | | -4+3x^2-x=0 | | 1/4-5/6x | | R^2+30=13r | | f=4+-7x-1 | | 12x-141=2x-11 | | 1/500+1/500=x | | 5y-(8-3y)=3(y+4) | | 68-2x=25x+20 | | f(-5)=4x-7 | | f(3)=4x-7 | | 5x+4+5=34 | | 6x+13=4x+37 | | 96-3x=42x+16 | | 11x^4+x^3-28x^2+19x-96=0 |