thenaivecube thenaivecube

03-06-2018
Mathematics

contestada

Solve: 2x-3y=21 and -6x+2y=7 PLEASE HELP

Respuesta :

musicnotesloves musicnotesloves

03-06-2018

the first one is : x=3/2y+21/2
the second one is: x=1/3y+−7/6

Answer Link

vidalmari6p99qfk vidalmari6p99qfk

03-06-2018

y= 10

2x-3y=21

2x=21+3y

x= (21/2 +3/2 y)

-6(21/2+3/2y)+2y=7

126/2+18/2y+2y=7

sorry I need to leave now

Answer Link

Otras preguntas

If a rectangle is 10 units wide and x units long what is the perimeter of this rectangle?

Transversal c intersects lines a and b. Prove that a||b in each case.

What is the difference in PE between a 2.00 kg mass 3.00 m high, and a 4.00 kg mass 5.00 m high? (Unit = J)

If f(x) = –2x + 1, find f(-3)

thoughts on attack on titan?

somebody help me please

7. Why do political parties fight so hard for control of Congress and state legislatures?

Write a function g whose graph is a reflection in the x-axis of the graph of f(x)=|x|−5.

PG © What single decimal multiplier would you use to decrease by 1% followed by a 1% increase?

John measures the mass of a cup of chocolate milk and a glass of orange Juice. He places both containers on a balance scale. He observes that the scales tips fo