hardyandlorri123 hardyandlorri123

19-04-2021
Mathematics

contestada

If x+2y=12 and x-y=3 find the value of x+y

Respuesta :

bloodyhonor bloodyhonor

19-04-2021

The answer would be 9

x-y=3
x=3+y

X+2y=12
(3+y) + 2y=12
3y+3=12
3y=9
Y=3

X-(3)=3
X=6

X+y
6+3=9

Answer Link

Otras preguntas

How did poisoned fields contribute to the collapse of Mesopotamia?

Who set up a trust in order to establish Standard Oil as a monopoly? (Points : 3) James Duke Henry Flagler Charles Dudley Warner John D. Rockefeller

How many different ways can the letters in the word "micro" be arranged if it always has to start with a vowel?

How did each of the following contribute to the success of the American Revolution? • George Washington’s leadership abilities • Geography • Foreign assistance

Form a hypothesis about how deeply water could erode and about how deeply glaciers could erode

Reason quantitatively. Pet Food, Inc. created a new package size that was 25% larger than the old package. If the old package contained 20 pounds, how much does

X+7=18-2x solve for x please

Making a pillow requires 3/4 yard of fabric. How many pillows can you make with 12 yards of fabric?

Which of the following did not contribute significantly to the Industrial Revolution in England in the late 1700s? a invention of an efficient steam engine b im

What product did Britain continue to export despite objections by the Chinese government?