kisembejohnson43 kisembejohnson43
  • 20-01-2022
  • Mathematics
contestada

solve for x and y
7x - 3y =23
2x - 4y = -8
​

Respuesta :

hihelpmeplease46 hihelpmeplease46
  • 20-01-2022
Ok soo

First substitute the value for x Ok x=23/7 + 3/7 y. 2x-4y=-8

Second solve the equation 2(23/7 +3/7 y) -4=-8

Third substitute the value of y do y=51/11

Forth solve the equation X=23/7 +3/7 x 51/11

Fifths the possible solution is x=58/11

Sixth check the solution (x,y)=(58/11, 51,11)

Seventh simplify 7x58/11-3x51/11=23. 2x58/11-4x51/11=-8

The ordered pair is a solution 23=23. -8=-8

(x,y)=(58/11, 51,11)



Answer Link

Otras preguntas

Someone pls help me I will make you brain
how is the banana fruit sugar a representation of energy stored from photosynthesis by the banana leaves?
HI i neeed helppppppppppppppppp
what is average velocity of an object
what are the laws for assistance animals?
SS.7.C.1.4 - Mid Complexity According to the Declaration of Independence, what is the relationship between government and the rights of the people? The people's
Solve the system by graphing. Tell whether the system has one solution, infinitely many solutions, or no solution. x + y = 3 3x − 2y = 4 a-many solutions b-one
Como se escribe Hablar, Comer y Vivir en plural
Theresa is planning a family reunion and is in charge booking the dining hall at Denny's. Denny's charges $125 to reserve the dining hall, then $13.00 per perso
Please solve with substitution or elimination