francisbelpereor1mdj francisbelpereor1mdj
  • 22-08-2017
  • Mathematics
contestada

solve the system using substitution 5y-x=-5 7y-x=-23

Respuesta :

sss333111 sss333111
  • 22-08-2017

5y-x= -5      7y-x= -23

x=5y+5

7y-(5y+5)= -23

7y-5y-5= -23

2y= -23+5

2y= -18

y= -9


x= 5y+5

x= (5*-9)+5

x= -45+5

x= -40

Answer Link

Otras preguntas

Given the statements: (a) The winner caught 15 fish; (b) Those who caught 3 or more fish averaged 6 fish each; (c) Those who caught 12 or fewer fish averaged 5
Women's friendships give center stage to communication, which fosters ________.
Affirm that operates with matrix-type structures in which both product divisions and geographic areas have... a) Centralized decision-making b) Decentralized de
Which pair involves the myogenic control mechanism for maintaining a normal glomerular filtration rate?a. extrinsic / macula densa cellsb. aldosterone / extrins
Simplify the expression. (Assume that x,y,r,s, and t are positive.)√121x⁶y⁻⁴
How many mols are present in 15L of a 2.5 M solution?
Graph these equations: y=2x–8 y=2x+8
i denify the whole number whose reciprocal has a decimal equizelint between 0.2 and 0.3
Assume you were able to send out an alert after the arrival of seismic waves at the closest station. Approximately how much time would people at other locations
Select the spectator ions for the following reaction: (3{KOH(aq)} + {Fe(NO}₃)₃({aq}) → {Fe(OH)}₃({s}) + 3{KNO}₃({aq}))a) (3{K}⁺, {NO}₃⁻)b) ({K}⁺, {OH}⁻)c) ({Fe}