shaunalab shaunalab

19-11-2017
Mathematics

contestada

Solve each system of equations by adding, subtracting, or multiplying.

2) x + y = 12
2x + y = 6

PLEASE SHOW WORK!

Respuesta :

qumpelka qumpelka

19-11-2017

x + y = 12
2x + y = 6

x = 12 -y
2x + y = 6

x = 12 -y
2(12 -y) + y =6

x = 12 -y
24 -2y + y =6

x = 12 -y
-2y + y = 6 -24

x = 12 -y
-y = -18

x = 12 - 18
y = 18

x = -6
y=18

Answer Link

Otras preguntas

What is the molecular formula of a molecule if its molar mass is 290 g/mol and its empirical formula is C6H8O?

Thw u.s. invasion of ____ in 2003 was a response to the belief that saddam hussein possessed WMDs. - iraq - iran - afghanistan

Solve. d + 3 < 12 d < –9 d < 9 d < –15 d < 15

"chris decided that this year she would put 25 percent of her income in savings and investments, an increase of 5 percent over the previous year. if a majority

What does Macbeth see on his way to kill the king? A.The king's son B. A bloody dagger C. The king's ghost D. His own son

how acidic or basic are household substances

what was the result of john Brown's raid on Harpers ferry

Arrange the events in the order in which they occurred. Tiles The Allies liberate Belgium and the Netherlands from Nazi control. The Nazi forces surrender to

Which is equivalent to (4xy-3x)^2, and what type of special product is it?

This is an equation. -5+(-5)+(-5)+(-5)+[(-3)+(-3)+(-3)+(-3)+(-3)]=(-5)(x) What is the missing number that makes this equation true?