If it's not what You are looking for type in the equation solver your own equation and let us solve it.
90f-120=60f
We move all terms to the left:
90f-120-(60f)=0
We add all the numbers together, and all the variables
30f-120=0
We move all terms containing f to the left, all other terms to the right
30f=120
f=120/30
f=4
| 6(1/2×n)=6 | | (3/x)+3=(2/3x)+(19/6) | | 8j-2=-10+9j | | 6x-4x=7x+12=9x-5 | | 9(a+6)=181 | | -8u=-7u+6 | | -9q+10=-6q-8 | | 5.11+1.10=0.3p-10.65 | | 9x+12=9x-5 | | 191-v=246 | | 10g+4=9g | | 100+(2x-40)+(3x-50)=180 | | 8(7n+1)=5n+8 | | 3/432=6x | | 8(0.5n-4)=n-0.25(16-4n) | | 3(x+10 )+6=3(x+12) | | 9s+7=10s | | -10+r=17 | | 2(6-2c)-4(6-2c)=28 | | 5(7+4x)=1+3x | | 11+9q=15+89 | | -4v-10=6v | | 8.8(x-3.75)=-26.4 | | 2x+3x+3=x+7 | | 68=4-8w | | c=9/5(4-42) | | w+w-1=15 | | 7/(x-3)+1/x=7/x-3 | | (2(x+1)/3)=3x-4 | | -10-4x=2x+8 | | -30=-4u+2(u-6) | | -3u+48=-6(u-3) |