Do you mean C = (30n+295) over (n-5)? If so then the solution is quite straightforward: C = (30n+295) over n-5 Multiply both sides of the equation by n-5 to eliminate the fraction: C(n-5) = 30n+295 Multiply out the brackets and bring over 295 to the LHS which now will be -295: Cn-5C-295 = 30n Collect like terms by bringing over Cn to the RHS which now will be -Cn: -5C-295 =30n-Cn Factorising 30n-Cn = n(30-C): -5-295 = n(30-C) Divide both sides of the equation by 30-C to make n the subject of the equation: n = (-5C-295) over (30-C) Check that your answer is correct by giving a value to C. For instance if C = 100 then n would = 159/14
ax-9 = b x = (b+9)/a
you cant
8
-2x plus 3y equals 1
No. -4 does not equal -2(1).
ax-9 = b x = (b+9)/a
If: 5 = x-y Then: y = x-5
you cant
There is no need. The first equation can be rearranged to a simple equation in just y. Multiply it by 0.2 to solve for y. Substitute the value of y in the second equation and rearrange to get a simple equation in x. Multiply by (1/6) to find x.
There are no "following" data!
Solve the following equation for A : 2A/3 = 8 + 4A
Which of the following is the best translation of this equation?
8
-2x plus 3y equals 1
No. -4 does not equal -2(1).
The slope of the line that represents the graph of that equation is 15.
Which of the following is the point-slope equation of the line with a slope equals -4 and a point of -2 3?