Me : the equations of two lines are 6x-y=4 and y=4x+2 what is the value of x in the solution for this system of equations?

The value of x in the solution for this system of equations is -1.

Given the following system of equations:

To determine the value of x in the solution for this system of equations, we would use the substitution method:

In order to find a solution, we would substitute one of the equations into the other equation.

Substituting eqn. 2 into eqn. 1, we have:

x = -1

Read more: link

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb