What is the x-value in the solution to this system of linear equations?

2x − y = 11

x + 3y = −5

a) -3 b) -1 c) 2 d) 4

B) -1  is the answer I think

2x -y = 11 -y = -2x + 11 y = 2x -11 . 2x + 3y = 7 3y = -2x +7 . So, the point (5,-1) is the common solution. . 2(5)-11 = -1, correct



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

mark brainliest

step-by-step explanation:

2 tens + 6 ones

1 ten + 16 ones

0 tens + 26 ones