ericarosez2003 ericarosez2003
  • 24-01-2019
  • Mathematics
contestada

5x-2y=14, 2x-y=5 substitution

Respuesta :

MrGumby
MrGumby MrGumby
  • 24-01-2019

Answer:

The solution set is (4, 3)

Step-by-step explanation:

To solve by substitution, start by solving the second equation for y.

2x - y = 5

-y = -2x + 5

y = 2x - 5

Now that we have this, put that expression in for y in the first equation and solve for x.

5x - 2(2x - 5) = 14

5x - 4x + 10 = 14

x + 10 = 14

x = 4

Now that we have the value of x, input it into either equation and solve for y.

2x - y = 5

2(4) - y = 5

8 - y = 5

-y = -3

y = 3

Answer Link

Otras preguntas

Review these words from the vocabulary table and write a sentence for each one that correctly uses the word. PLZ HELP
GUESS WHAT??? I'LL MAKE YOU BRAINLIEST!!! HURRY AND ANSWER THIS!!! Galaxies are separated by ___________. A) extremely small distances B) extremely large distan
What is the simplified form of 2160x8/60x2? Assume 36x3 36x2 6x3 6x2*see image
What does martial mean
explain how waves, energy, and matter are related
why should something be done​
How do Telemachus’s actions in battle compare to his father’s?
Most of the nitrogen we lose is lost in/through our
Use your historical sequencing skills. Based on the timeline, when did the Roman Republic end? A 44 BC B. 27 BC C. AD 14 D. AD 37
Which statement is correct ?