Write the statement as an algebraic equation. Then solve the equation.
Twice a number: 2x
Three times the number: 3x
One third the number: x/3
In your question, you said: 2x - 3x = x/3 + 14
Multiply each side by 3 ==> 6x - 9x = x + 42
Combine the terms on the left side ==> -3x = x + 42
Subtract 'x' from each side==> -4x = 42
Divide each side by -4 ==> x = 42/(-4) = -21/2
x = -10.5
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To solve the problem 5 - -6, think of it as 5 + 6. You can do this because two negative numbers equal as positive number, and similarly two negative signs equal a positive. Therefore 5 --6 is 11.
You cannot solve log x- 2 unless (i) log x - 2 is equal to some number or (ii) x is equal to some number.
90
A number to a negative power is equal to One divided by number to its positive power. So, x^-2 is equal to 1/x2.
1 _ 2to the 3rd power and solve so it would be.... 1/8 as a fraction