AyverieG686462 AyverieG686462
  • 03-11-2022
  • Mathematics
contestada

Substitution x=3y2x+4y = 10

Respuesta :

DrexT603486 DrexT603486
  • 03-11-2022

Problem:

Solve by substitution

x=3y

2x+4y = 10

Solution:

let's denote the equation of the problem by:

x=3y EQUATION 1

2x+4y = 10 EQUATION 2

Substitute the x of equation 1 into equation 2:

2(3y) + 4y = 10

this is equivalent to:

6y + 4y = 10

this is equivalent to:

10y = 10

solve for y:

y = 10/10 = 1

then, we can say that y = 1. Now replace this value (y =1) in equation 1:

x = 3y = 3(1) = 3

Thus, we can conclude that the solution is

x= 3 and y = 1

Answer Link

Otras preguntas

How do three planes intersect at one point?
1/7(x+21)=-6 answer ?
How do three planes intersect at one point?
the student council president wants to find out the opinion of the students on the issue of school lunch options. The president sends out a survey to a random
wallpaper cost $2 per square yard how much would it cost to cover a rectangular wall that measures 15 feet by 21 feet
How many magnesium ions are present in 5.36 x 10-4 mol of magnesium iodide?
Tasha believes that she can rewrite the diffrence 120 - 36 as a product of the GCF of the two numbers and another diffrence.Is she correct?
what is this number in word form 3,152,308,726
16x^2-24x+7=0 equation and/or inequalities
What are the natural resources in venice,italy?