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1: x = 2, 2: y = x + 5 -> Solve this pair of simultaneous equations.

A set of simultaneous equations most commonly represents two lines on a graph, or perhaps a circle, with a line running through it. When you solve a set of simultaneous equations, its important to remembe...

Answered by Eddie B. • Maths tutor

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Solve 2(x+4)=4x-6 for x

The first thing to do is to multiply out the brackets. You treat each side of the equation separately. You do this by multiplying each value in the bracket by the number outside the bracket.2x + 2

Answered by Jasmine L. • Maths tutor

3107 Views

Expand and simplify (x-3)(2x+4y)^2
The first step is to expand the (2x+4y)^2 bracket. Start by writing out (2x+4y)(2x+4y) and multiply out. A simple way to do this is by using the 'foil' method - multiply the 'first' terms in each bracket,...
EM
Answered by Ella M. • Maths tutor
3579 Views

A triangular prism has mass 900g, length 20cm and the triangle bases are equilateral and with side length 6cm. Find the density(g/cm^3) of the material the prism is made of.
Answer:Density is mass/volume .: mass must be identified and volume calculated.Volume of triangular prism is calculated as prism lengtharea of triangle.As triangles are equilateral and of side length ...
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Answered by Oliver W. • Maths tutor
3616 Views

Solve... 8x + 2 = 3x - 8
To SOLVE this equation means find what x = ? To do this we need to we need to follow 3 steps. FIRST: get all the x's on one side (remember that all operations must be done to both sides of the = sign). SE...
MP
Answered by Milly P. • Maths tutor
4240 Views

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1: x = 2, 2: y = x + 5 -> Solve this pair of simultaneous equations.

Solve 2(x+4)=4x-6 for x

Expand and simplify (x-3)(2x+4y)^2

A triangular prism has mass 900g, length 20cm and the triangle bases are equilateral and with side length 6cm. Find the density(g/cm^3) of the material the prism is made of.

Solve... 8x + 2 = 3x - 8

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