-6f + 13 = 2f - 11
\[-6f + 13 = 2f - 11\] \[13 = 2f - 11 + 6f\] \[13 + 11 = 2f + 6f\] \[24 = 8f\] \[24/8 = f\] \[3 = f\] If you don't understand, please say so :)
^^ is correct
The problem to solve is: -6f + 13 = 2f - 11 First, let's work on the left hand side of your equation, the -6f + 13 This means, for instance, to see if it can be simplified at all. Multiply f and 6 Multiply f and 1 The f just gets copied along. The answer is f f 6*f evaluates to 6f Because of the minus sign 6f becomes - 6f The answer is -6f -6*f+13 evaluates to -6f+13 So, all-in-all, the left hand side of your equation can be written as: -6f+13 Now, let's work on the right hand side of your equation, the 2f - 11 Multiply f and 2 Multiply f and 1 The f just gets copied along. The answer is f f 2*f evaluates to 2f 2*f-11 evaluates to 2f-11 The right hand side of your equation can be written as: 2f-11 So with these (any) simplifications, the equation we'll set out to solve is: -6f+13 = 2f-11 Move the 13 to the right hand side by subtracting 13 from both sides, like this: From the left hand side: 13 - 13 = 0 The answer is -6f From the right hand side: -11 - 13 = -24 The answer is -24+2f Now, the equation reads: -6f = -24+2f Move the 2f to the left hand side by subtracting 2f from both sides, like this: From the left hand side: -6f - 2f = -8f The answer is -8f From the right hand side: 2f - 2f = 0 The answer is -24 Now, the equation reads: -8f = -24 To isolate the f, we have to divide both sides of the equation by the other variables around the f on the left side of the equation. The last step is to divide both sides of the equation by -8 like this: To divide f by 1 The f just gets copied along in the numerator. The answer is f -8f ÷ -8 = f -24 ÷ -8 = 3 The solution to your equation is: f = 3
the most simplest process
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