Seudónimo Seudónimo

29-10-2017
Mathematics

contestada

What is the value of x in the solution to the following system of equations?

x − 2y = 2
3x + y = 6

Respuesta :

Аноним Аноним

29-10-2017

The system of equations is
x - 2y = 2 (1)
3x + y = 6 (2)

From (1), obtain
x = 2y + 2 (3)

Substitute (3) into (2).
3(2y + 2) + y = 6
6y + 6 + y = 6
7y = 0
y = 0
From (3), obtain
x = 2*0 + 2 = 2

Answer: (2, 0) or x=2, y=0

Answer Link

Otras preguntas

Why does the dimethylaniline couple with the diazonium salt at the para position of the ring?

Hugo and Viviana work in an office with ten other coworkers. Out of these 12 workers, their boss needs to choose a group of five to work together on a project.

Find the coordinates of P so that P partitions segment AB in the ratio 1 to 3 with A(-5,4) and B(7,-4).

Which factor determines the atomic number of an atom? A) the number of protons plus the number of neutrons in every atom. B) the number of neutrons in two atoms

6. A worker uses 450 inches of steel wire to make 300 springs of the same size. At this rate, how many inches of steel wire are needed to make Dspring?

Compare and contrast the five layers that make up the atmosphere.

HELP PLEASE RIGHT NOW!!!!!!! ITS 87 POINTS

Air is compressed from 100 kPa and 150C to a pressure of 1000 kPa while being cooled at a rate of 20 kJ/kg by circulating water through the compressor casing. T

A firm has the following cost and marginal cost functions: Upper C left parenthesis q right parenthesis equals 64 plus q squared and MC equals 2 q. What is the

In the line, “sighs that caused the everlasting air to tremble,” appeals to the reader’s _____ and _____, are used to set a mood of discomfort and unrest. visi