naibfatma naibfatma
  • 24-01-2024
  • Mathematics
contestada

Solve the systems by substitution: -2x+y=4, 3x+y=9

Respuesta :

MisterZeng
MisterZeng MisterZeng
  • 24-01-2024

Answer:

x = 1 and y = 6

(1, 6)

Step-by-step explanation:

Given system of equations:

1. -2x + y = 4

2. 3x + y = 9

Express y in terms of x from the first equation:

y = 2x + 4

Substitute y into the second equation:

3x + (2x + 4) = 9

Combine like terms:

5x + 4 = 9

Subtract 4 from both sides:

5x = 5

Divide by 5:

x = 1

Substitute x back into the expression for y:

y = 2(1) + 4 = 6

So, the solution to the system of equations is x = 1 and y = 6.

Answer Link

Otras preguntas

Is cystic fibrosis an example of sex linked disorder
If a gold coin has 9 parts gold and 1 part other metals, what percent of the coin is gold?
Which of the following is true? A. checks and debit card board withdraw money directly from a bank account B. Checks are the most wisely excepted form of p
Can someone tell me what these white dots on my skin are?
Helpppppp I'll give you 20 points!!!!
Groups or families in the periodic table have what in common
When radioactive substances​ decay, the amount remaining will form a geometric sequence when measured over constant intervals of time. The table shows the amoun
A store has 24 beach towels in stacks of 6 towels each.how many stacks of beach towels are at the store?
Which beatbox describes the relationship between dna, genes, and chromosomes?
A criminalist collects small strands of fabric from a crime scene. Which type of evidence is he detecting? latent evidence trace evidence direct evidence gross