1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nadezda [96]
3 years ago
15

Solve for each System of Equation

Mathematics
2 answers:
weeeeeb [17]3 years ago
7 0

using  substitution.


\bf \begin{cases}5x-2y=4\\2x-y=1\end{cases}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\\stackrel{\textit{solving the 2nd equation for \underline{y}}}{2x-y=1\implies 2x-1=\boxed{y}}~\hspace{5em}\stackrel{\textit{substituting the found \underline{y} in the 1st equation}}{5x-2\left( \boxed{2x-1} \right)=4}\\\\\\5x-4x+2=4\implies x=4-2\implies \blacktriangleright x = 2\blacktriangleleft


\bf \stackrel{\textit{now, we substitute the found \underline{x} in the 1st equation}}{5(2)-2y=4\implies 10-2y=4}\implies 10-4=2y\\\\\\6=2y\implies \cfrac{6}{2}=y\implies \blacktriangleright 3=y \blacktriangleleft\\\\[-0.35em]\rule{34em}{0.25pt}\\\\~\hfill (2,3)~\hfill

SOVA2 [1]3 years ago
3 0
5x-2y=4 x=2 and y=3
2x-y=1 both x and y equals one
You might be interested in
Eight times the reciprocal of a number equals 4 times the reciprocal of 8. find the number
Burka [1]
8*(1/x) = 4*(1/8)
8/x = 4/8
64 = 4x
x = 16
4 0
3 years ago
Any help is appreciated ​
8_murik_8 [283]

Answer:

It can't be C or D. I think it could be A.

7 0
3 years ago
Read 2 more answers
1.a) Convert 81° into grade.<br>10​
Kazeer [188]

Step-by-step explanation:

I hope it helps man this much .

6 0
3 years ago
What is the goal of solving equations?
Arada [10]

Answer:

The goal in solving an equation is to get the variable by itself on one side of the equation and a number on the other side of the equation. To isolate the variable, we must reverse the operations acting on the variable.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Solve for n: 2n + 3 + 3n = n + 11
Arte-miy333 [17]
N is equal to 2 in the equasion

4 0
3 years ago
Read 2 more answers
Other questions:
  • I need help for #2 please
    7·1 answer
  • What does it mean for a product of factors to be expressed using exponents
    15·1 answer
  • Simplify 5 + 2{ x - 4[3 x + 7(2 - x )]}.
    12·1 answer
  • if the midpoints of the sides of a triangle are connected, the area of the triangle formed is what part of the area of the origi
    14·1 answer
  • What is five and one third divided by four
    8·2 answers
  • Please help me asap
    8·1 answer
  • 30-5 • 4+2 how do I solve this
    14·1 answer
  • In one town, 4% of 18-29 year olds own a house, as do 21% of 30-50 year olds and 55% of those over 50. According to a recent cen
    10·1 answer
  • 3 bananas cost $0.33. At this rate, how much do 5 bananas cost?
    6·1 answer
  • I’m very confused please help!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!