fisherjake510 fisherjake510
  • 01-08-2017
  • Mathematics
contestada

Solve the system using elimination. x + 2y = –6 3x + 8y = –20

Respuesta :

texaschic101
texaschic101 texaschic101
  • 01-08-2017
x + 2y = -6....multiply by -3
3x + 8y = -20
---------------
-3x - 6y = 18 (result of multiplying by -3)
3x + 8y = -20
--------------add
2y = -2
y = -2/2
y = -1 <===

x + 2y = -6
x + 2(-1) = -6
x - 2 = -6
x = -6 + 2
x = -4 <==

solution is (-4,-1)
Answer Link

Otras preguntas

What is the length of dc
determine whether the pronouns used are subjective or objective or possessive
Use watershed in a sentence
True/False. Water is a polar molecule, which means, it has a negative end and a positive end.
What percentage of total expenses is spent on housing? (Feel free to round to the nearest tenth.) Show all of your work in the box below for full points: Thank
1. Find the area. * Of 0.6 2 in and 2 in
An aqueous 2.00 M hydrochloric acid solution is prepared with a total volume of 0.350 L. The molecular weight of hydrochloric acid is 36.468 mol What mass of hy
É por isso que até hoje ele só o que você observouno texto Porque o morcego só voa a noite quanto ao tempo e ao espaço? Há muito tempo houve uma tremenda guerr
A regular heptagon has a side of 13.9 and an apothem of 14.4. Find the area of the heptagon. Round your answer to the nearest WHOLE NUMBER.
What is the quotient of square root of 27 and square root of 3??