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Maths
GCSE

Solve the inequality 7x+3y-4 > 5y-19x for y in terms of x.

7x+3y-4 > 5y-19x

Adding 19x to both sides:

26x+3y-4 > 5y

Subtracting 3y from both sides:

26x-4 > 2y

Divide both sides by 2 to put the expression in its simplest...

DL
Answered by Danny L. Maths tutor
3662 Views

How do you solve quadratic inequalities?

Quadratic inequalities generally don't arrive in the standard quadratic form (Ax^2 + Bx +c) and so can be sometimes difficult to spot. However, if you see an X^2 - or brackets that expand to X^2 - on eith...

DK
Answered by David K. Maths tutor
3073 Views

Factorise and solve x2 - 8x + 15 = 0

Factorise the quadratic into two brackets to make (x-3)(x-5)=0 Because the product of these brackets is zero then the value of one of the brackets must equal zero. In order for one of the brackets to have...

MS
Answered by Mohamed S. Maths tutor
8118 Views

Expand and simplify (x+2)(x+3)

Use the FOIL method to remember which components you need to multiply together. F= First two, O= O

NS
Answered by Natasha S. Maths tutor
53227 Views

5w -3 = 3w + 15

5w -3 = 3w + 15 

Need to get the numbers on one side, and letters on the other side.

5w = 3w + 15 + 3 

5w - 3w = 15 + 3

2w = 18

w = 18/2

w = 9

HN
Answered by Hannah N. Maths tutor
4136 Views

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