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Maths
GCSE

Solve the simultaneous equations: (a) y - 2x = 6; (b) y+2x = 0.

  • rearrange equation (a) to be: y = 6 + 2x. Substitute this into equation (b) to get: (6 + 2x) + 2x = 0

  • rearrange this to get: 6 + 4x = 0. Simplify to get x = -(6/4). Get the val...

FM
Answered by Faizan M. Maths tutor
9756 Views

May you please help me solve these algebra problem set ?

I would go through one of the problem on the interactive board with the student and ask them to try next question alone.

TM
Answered by Tara M. Maths tutor
2695 Views

1a) Simplify 2a^3 x a^5 1b) (4x^2)^3 1c) 2(3y+1) - 3(y-4)

1a) To simplify this into one expression you first multiply together the co-efficients, therefore 2a x a = 2a. Then for indices when they are multiplied together you add them, so the simplification would ...

FI
Answered by Freddie I. Maths tutor
3424 Views

Given the function f(x) = 2x^2 + 3.When f(x) = 53 find both values of x

Sub in f(x)=53 into equation. So you have 53=2x^2+3, deduct 3 from both sides to get 50=2x^2 and then divide each side by 2 to get 25=x^2 and finally square root both sides to get x=5 or x=-5.

JW
Answered by Jack W. Maths tutor
5444 Views

y=6x+9 , 3y-18x+9=0 Are these lines parallel?

3y-18x+9=0 , 3y=18x-9 , y=6x-3 , Both lines have the same value for m which means they both have the same gradient and are therefore parallel.

SL
Answered by Sean L. Maths tutor
3104 Views

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