melstutes91 melstutes91
  • 12-02-2021
  • Mathematics
contestada

Solve by substitution or elimination
4X – 3y = 7
4x + y = 11

Respuesta :

jenandjaida jenandjaida
  • 12-02-2021

Answer:

(5/2 , 1)

Step-by-step explanation:

4X – 3y = 7

4x + y = 11

———————

Multiply a -1 to the bottom equation to get the 4x as a negative so it cancels out.

4x - 3y = 7

-4x - y = -11

——————

-4y = -4

Divide by -4

y = 1

Substitute the value of y into one of the equations and solve

4x - 3(1) = 7

4x -3 = 7

4x = 10

Divide by 4

X = 10/4

Simplify by dividing by 2

x = 5/2

Therefore the answer is (5/2, 1 )

Answer Link

Otras preguntas

A line includes the points (7, –7) and (11, –3). What is its equation in slope-intercept form?
What is -3/10 + 3/10 =
Which one is not a function? And why not ?
What is an equation of the line that passes through the point (4, −1) and has slope −5?
what song can you think of that fall under the winter Seasons of Love songbyJonathanLarson theme that our choir can sing at our concert in January? If you can't
cecily is inflating her bicyble tyre with the pump below. when she pushes the plunger down, it is moving against a force appliefd by the air inside the cynlinde
Which two events are part of the rock cycle? A. Existing rock is melted aboveground and erodes. B. Existing rock is weathered by water and erodes. C. Solid rock
2AlCl3 --> 2Al + 3Al2If you produce 15 moles of Al, how many grams of AlCl3 decomposed? ​
Simplify the expression : 8-(x-4)-2x+3(5-x) ?
Two numbers are in the ratio 7:10 If the larger number is 140,what is the smaller number ​