If it's not what You are looking for type in the equation solver your own equation and let us solve it.
390=35t+40
We move all terms to the left:
390-(35t+40)=0
We get rid of parentheses
-35t-40+390=0
We add all the numbers together, and all the variables
-35t+350=0
We move all terms containing t to the left, all other terms to the right
-35t=-350
t=-350/-35
t=+10
| 42+48=4x+24+42−8x | | 42+48=4r+24+42−8r | | 5x^{3}+25=-15 | | 4x2+48=4x+24+4x2−8x | | 6.5=35t+40 | | 65=35t+40 | | 5x-2+8x+7=252 | | 4y+12(2)=12 | | 4y+12(1)=12 | | 19.62=5t^2 | | 4y+12(0)=12 | | 4y+12(-2)=12 | | 8x+7=252 | | 1.5=0.4t+1.2 | | 4y+12(-1)=12 | | 8y+48(1)=48 | | n−5=5n−1 | | |a/6=3=14| | | 8y+48(0)=48 | | 8y+48(-1)=48 | | 25/r=75 | | 5w–9=44 | | 8y+48(-2)=48 | | 4x+x+2=10x-3 | | -6(x=7)=-12 | | 45x+1=44x+3 | | 6x-15=-4x+35 | | 9.35=n—5 | | .2x+6=–4x | | (4x+1)^3=27 | | X=-9.5+1.5y | | -5y–15=10y+20 |