Solve: 13x+8 = 4x + 1

x = -7/9

Step-by-step explanation:

First, subtract 8 from both sides of the equation.

13x = 4x - 7

Next, subtract 4x from both sides of the equation.

9x=-7

Divide both sides of the equation by the same term

x = -7/9

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

three-fourths of an hour

36÷48=0.75

0.75=