barthkid48 barthkid48
  • 24-11-2022
  • Mathematics
contestada

Solve the system by substitution.
y = -6x +8
7x + 2y = -14

Respuesta :

kennethkwakye918
kennethkwakye918 kennethkwakye918
  • 24-11-2022

Answer:

y=-28 and x=6

Step-by-step explanation:

y=-6x+8...... eqn(1)

7x+2y=-14.......eqn(2)

Two times equation (1)

2y=-12x+16..... eqn(3)

2y=-14-7x........ eqn (2)

eqn(3) - eqn(2)

0=-5x+30

5x=30

x=6

from eqn (1) where x=6

y=-6(6)+8

y= -36+8

y=-28

Answer Link

Otras preguntas

A student bought a book for $7 and a pen. The total cost was $9. Which of the following equations can be used to find the cost of the pen? ​
1.Why do scientists pick up ash and lava? to be dangerous to be cool to study them to clean up
find the HCF eg. first expression = 4a -8 =4(a-2)​
Problem Solving - Intro Question In the final of the Women's Charity Road Run, four runners finished. Unfortunately, the judge was too busy collecting the chari
The zoo in Samir's city is building a new habitat for its 7 spider monkeys. The habitat will have trees, ladders, and vines in a cube-shaped cage that measures
2. BCD uses 6 bits to represent a symbol. a) True b) False​
Geometry question. Parallel lines. “Find value of x that will make A||B”
Select the equivalent expression. 5 23 =? 42 Choose 1 answer: A 44 215 410 46 47
i need help asap please
About Spanish class, help!