benkolasa03 benkolasa03
  • 18-02-2020
  • Mathematics
contestada

What is the result of adding these two equations? 2x+7y=4
-2x-8y=-2

Respuesta :

pizzaburgers
pizzaburgers pizzaburgers
  • 18-02-2020

Answer:

y= -2

Step-by-step explanation:

2x and -2x add to 0

7y and -8y add to -y

4 and -2 add to 2

divide by-1 to move the negative from the y to the 2.

Answer Link

Otras preguntas

what does social darwinism mean?
What did it take for Mark Henry to aspire to excellence…….what goals did he make and meet?
Factor the expression 1/8x + 11/8
Answer question please it is calculus II
How many subheadings must you list under a heading? Question 2 options:
¥ ={ odd numbers less than 30} A={3,9,15,21,27} B={5,15,25} C{9,15,17,19} complete the Venn diagram
Write twenty-seven hundredths as a decimal number.
This quotation illustrates the action of the Supreme Court to -
Solve for the number of fish in the pond in 10 months. The estimated number of fish in the pond after 10 months would be approximately 314 fish
Which of the following is a solution for k/-3+6 ≤ 5? Select all that apply. 5 -5 -3 3