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(6/x-2)-(2/x+3)=1

a) This question tests you on using fractions, brackets and quadratic equations. We should start by trying to make it into a form we know how to deal with. This will be by the balance method. If we multiply ...
BV
Answered by Benjamin V. • Maths tutor
3348 Views

Make y the subject of the equation: t=(y+2)/(4-y)

Multiply by 4-y => t(4-y)=y+2 Expand the brackets => 4t-ty=y+2 Get all the y's on the same side => 4t-2=ty+y Factor out the y => 4t-2=(t+1)y Divide by t+1 => (4t-2)/(t+1)=y
CM
Answered by Christopher M. • Maths tutor
4061 Views

solve the inequality 5x + 3> 3x - 6

5x +3 > 3x -6 2x +3 > -6 (-3x from both sides) 2x > -9 (-3 from both sides) x > -4.5 (divide by two on both sides)
AL
Answered by Anna L. • Maths tutor
5451 Views

Solve the following equation; 8x-2 > 4x +6

First of all we need to get all of the x's on one side and all the numbers on the other side. Therefore to do this firstly we should add 2 to both sides. 8x > 4x +8 Secondly we need to -4x from both sides...
RD
Answered by Rory D. • Maths tutor
5711 Views

What is 25% of 400?

25% = 0.25 or also one fourth of the total. Therefore if you divide 400 by 4, this equals 100. One fourth of 400 is 100.
MM
Answered by Michelle M. • Maths tutor
22701 Views