aylinyoselin3636 aylinyoselin3636

21-05-2020
Mathematics

contestada

x+y=20 2x+2y=18 por método de reducción

Respuesta :

athulbenny2005 athulbenny2005

21-05-2020

Answer:

x-y = 20 ---(1)

2x+2y=18---(2)

=multiply equation (1) by 2+- =

=x2 = 2x-2y = 40

elimination method =

2x-2y=40

+ 2x+2y=18

-------------------

4x + 0 = 58

x=58/4 = 14.5

Hope it is correct

Answer Link

Otras preguntas

1. Identify the hypothesis and conclusion of this conditional statement: If two lines intersect at right angles, then the two lines are perpendicular. Hypothe

PLEASEE HELP URGENT!!!!

What is the answer to number 9.

Do you know how governments maintain power? Match the term in column 1 with the definition in column 2.

Me.Green tells you that a right Triangle has a hu triangle has a hypotenuse 13 and a leg of 5. She asks you to find the other leg of the triangle. What is your

f(3)=x^(3)-19x+30 Show that is equation = 0

Please help me with this....

What is the answer to (7*x+9)*x+90

If billy shot a pellet gun at a block of wood hung by a string what would happen to an unmoving block of wood after the pellet hits it

i need help por favor gracias