katelynmarie3 katelynmarie3

18-01-2018
Mathematics

contestada

Solve system of equation by substitution

x-2y=3, 4x-8y=12

Respuesta :

jessicavaldez523 jessicavaldez523

18-01-2018

set a y equation or x equation
x-2y=3
x= 2y+3
plug in the x equation to the other equation
4x-8y=12
4 (2y+3)-8y=12
8y + 12 -8y=12
0=0?? I think this means y=0
plug in the y value to the x equation
x= 2 (0) +3
x= 3
points (3,0)

Answer Link

Otras preguntas

there 2 parts to the question

how have voting and civil rights expanded over time?

plzzzzzzzzzz help!!!!!!

can someone help me on what this means please? brainliest

cos 45° cos 30° + sin 45° sin 30°

What is the central idea of Whitman's poem "When I Heard the Learn'd Astronomer"

5 6 7 8 9 10 TIME REMAN 01:53: Failure to address the three questions of economics will have what kind of impact on an economy? O It will have no consequences.

2. Which pair of angles is not congruent? F. ∠1 and ∠7 G. ∠3 and ∠5 H. ∠4 and ∠6 I. ∠2 and ∠5

How many Molecules of oxygen are produced by the reaction of 7.89 grams of KCIO3 KCIO3 — KCI + O2

what is biology?a.science b.social