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how do you solve a linear equation where there are unknowns on each side e.g. 4(k + 7) = 12k + 4

In order to solve this equation you want to get all of the unknowns on one side of the equal sign and all of the numbers on the other side. However, before you do this, the first step is to expand the bra...

Answered by Molly G. • Maths tutor

3139 Views

rearrange the equation y=7x-3 to make x the subject

The first step would be to have the x's on their own so add three to both sides so the equation goes from y=7x-3 to y+3=7x. The current subject is 7x= we need x= so both sides need to be divided by 7. Thi...

Answered by Sam G. • Maths tutor

10158 Views

How to express (4x)/(x^2-9)-2/(x+3)as a single fraction in its simplest form.

First we should be aware of the relationship bewteen the denominator of the two fractions. Since x^2-9=(x+3)(x-3), we can multiply (x-3) on both numerator and denominator of the fraction of 2/(x+3). Henc...

Answered by Kexin Y. • Maths tutor

3999 Views

If a triangle has all equal length sides, what is the angle of one of the corners?

60 degrees

Answered by Lily W. • Maths tutor

1444 Views

The first four terms in a sequence are: -1, -4, -7, -10. Write an expression for the nth term of the sequence.

Answer: -3n + 2Explanation: 'n' stands for term number. The 'nth' term is a formula with 'n' in it which enables you to find any term of a sequence. This sequence of numbers changes by the same a...

Answered by Rebecca L. • Maths tutor

6355 Views