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Solve the simultaneous equations: 3x-y=13, 2x+y=12

To solve these simultaneous equations we first need to eliminate one variable (the x or the y). For this we will need the coefficients (numbers in front of the variables) to be equal or opposite on one varia...
ED
Answered by Ellie D. Maths tutor
6114 Views

Solve algebraically the simultaneous equations: 6x=5-2y 12.5=3x+3y

Rearrange both equations into the form ax + by = c. 3x+3y = 12.5 6x +2y = 5. 2) Make either x or y have the same coefficient in each equation. In this case we use x, to do this we multiply the first equation...
LW
Answered by Laura W. Maths tutor
3308 Views

Préférez-vous vivre à la campagne ou en ville? Pourquoi?

Une réponse potentielle: Certainement en ville, je suis sans doute. Personellement, la tranquilité à la campagne ne m'amuse jamais. J'aime bien le fait qu'en ville, c'est très animé et il y a beaucoup à fair...
JB
Answered by JOSEPH B. French tutor
9217 Views

Expand and simplify (x – 9)(x + 2)

x^2 - 7x - 18
JB
Answered by JOSEPH B. Maths tutor
7502 Views

Find the coordinates of the mid-point AB where A (-3,-3) and B (1,3)

X coordinates = (-3+1)/2 = (-2)/2 = - 1Y coordinates = (-3+3)/2 = (0) /2 = 0 Coordinates of the midpoint = (x,y) = (-1,0) If they were struggling to visualise it/to avoid simple mistakes, I would suggest qui...
EW
Answered by Edward W. Maths tutor
3419 Views