briannamdean briannamdean
  • 11-09-2020
  • Mathematics
contestada

Solve the system of equations.
5x – 7y = 58
y = -x + 2

Respuesta :

firaolabera991
firaolabera991 firaolabera991
  • 11-09-2020

5x-7y=58

y=-x+2

  • 5x-7(-x+2)=58
  • 5x+7x-14=58
  • 12x-14=58
  • 12x=58+14
  • 12x=72
  • x=6

5x-7y=58

5(6)-7y=58

30-7y=58

-7y=58-30

-7y=28

y= -4

Answer Link

Otras preguntas

What energy source do plants use to produce sugar?
$6300 is invested , part of it at 12%, and part at 6%.  For a certain year, the total yield is 564.00.  How much was invested at each rate?
HELP PLEASE WITH 1 AND 2 1. Simplify the following expression 2.given the following equation solve for a. (Assume a,b and c are positive real numbers)
The receptive surface for pollen on an angiosperm flower is the (A) anther (B) corolla (C) ovary (D) style (E) stigma
how do I factor this polynomial? q^2-121
Which British dominion achieved independence in 1921-22, following the Easter Rising of 1916? a) the southern counties of Ireland b) Canada c) Ulster d) Ind
why do ecologist make models?
Which statement about the Islamic Golden Age is a fact rather than an opinion? (1) Islamic medicine was more advanced than Chinese medicine. (2) Poetry and lite
Write an algebraic expression for two fifths the cube of a number
Inside which portion of a cell does translation take place? A. The endoplasmic reticulum B. The nucleus C. The cytosol D. The Golgi complex E. The cell membrane