1/8x+1/8x+12=2/5x Urgent need

1/8x+1/8x+12=2/5x Urgent need


1/8x+1/8x+12=2/5x
Reduced to 1 / 4x + 12 = 2 / 5x
12=2/5x-1/4x
12=3/20x
x=80



3.5x-0.8x = 0.81x how to solve this equation?


3.5x-0.8x=0.81
2.7x=0.81
x=0.81÷2.7
x=0.3



How to solve the equation of 8x-3 = 6.5x + 7.5?


8x-3=6.5x+7.5
8x-6.5x=7.5+3
1.5x=10.5
x=7



Solving the equation about X: AX-5 = 6x


X = 5 / (a-6), where a cannot be equal to 6