I will assume this is (2/5) x +4 = 6
Subtract 4 from both sides to get
(2/5)x = 2 Now multiply both sides by 5/3 to get
x = (5/2) * 2 = 5
Divide both sides of the equation by 10 and you are left with:
x+5 = 10 subtract 5 from both sides
x=5
Enter ' 2.5 ' then press the ' 2nd ' key then the TAN (which will now say 'atan') button then ' = '
When you need to DIVIDE by a fraction, flip it over and MULTIPLY
-9/16 / 3/4 = -9/16 x 4/3 = -36/48 then simplify -3/4
Use the distributive property to multiply through then collect like terms
2a - 6 + 4b -2a+2b +6 +5
2a-2a +4b+2b -6+6+5
6b+5
The antilog function is just the 10^x key right next to the log key
y=mx+b substitute in one of your pints to find 'b' ..... as a check see if the other point is answered by the resulting equation.....
You can only get VERY close to 0
Here is an example...
(1/99)^80 = a very very small number, but still > 0
9f + 3.6 = 10.6 subtract 3.6 from both sides of the equation
9f=7 Divide both sides by 9
f=7/9
it is a 21 place repeating decimal, so I don' think anyone can write out the FULL decimal...
