ria3545
ria3545
04-02-2021
Mathematics
contestada
solve the simultaneous equations
2x+3y=13
4x-y=-2
Respuesta :
assvecca
assvecca
04-02-2021
from eq1 ,
2x = 13-3y
x = 6.5-1.5y (eq 3)
sub eq 3 into eq2,
4(6.5-1.5y)-y=-2
26-6y-y=-2
-6y-y=-2-26
-7y=-28
7y=28
y=4 ( eq 4 )
sub eq4 into eq3 ,
x=6.5-1.5(4)
x=6.5-6
x=0.5
Answer Link
VER TODAS LAS RESPUESTAS ( 48+ )
Otras preguntas
Whats the use for hands?
Viruses and bacteria can infect human cells. Bacteria are living organisms, while viruses are not. How do you think the treatment for viral and bacterial illnes
Large sheets of ice can cause erosion by moving the rocks beneath them. How can the rocks be weathered by ice? A. Ice moves the pieces of rocks to different loc
Quiz Quest Show instructions Question 3 (1 point) BEFORE the invention of writing, what was used to communicate information? a Ob O c cylinder seals cuneiform h
You are considering a 5/1 ARM. What does the 1 represent? A. The total number of years of the loan B. The number of years that a fixed interest rate will be app
Determine and state an equation of the line parallel to the line 5x-4y=10 and passing through the point (4,12)
please help me for urgent​
What two factors allow Ecologists determine a populations density?
What are the rights of the accused
Rewrite the equation in Ax+By=C form. Use integers for A, B, and C. y-4=-5(x-5)
