exam Maths Puzzle Numerical Ability

when solving the system of equations, 3x+y=14
which expression could be substituted x+4y=3
for y in the second equation?

a.3-4y
b.3-x/4
c.14-y/3
d.14-3x

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exam Other Question

Can someone also tell me What are (a) the x-intercepts, (b) the y-intercepts and (c) the foci of the ellipse
x^2/25 + y^2/36 = 1
(a)_________
(b)_________
(c)_________
A 306 inch board is cut into 2 pieces. One piece is five times the length of the other. Find the length of the two pieces.


The short piece is ___________

The long piece is ____________