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 ( 45+ )
Otras preguntas
Can anyone help me? A triangle has vertices at A(3,4), B(-3,2), C(-1,-4). Is the triangle a right triangle? Explain.
Alexander is a stockbroker. He earns 12% commission each week. Last week, sold $5,300 worth of stocks. How much did he make last week in commission? If he a
Deon throws a ball into the air. The height, h, of the ball, in meters, at the time t seconds is modeled by the function h(t) = -5t + t + 4. 1. When will the b
In the relationship between number of towers and number of customers proportional? Explain
Need help with chemistry homework. About separation of mixturesWhen you evaporate saltwater, and there's salt left, how does they separate, even though they wer
Find the values of x and y in the diagram below. (4x-7) 86° (7y-1)⁰ (9x + 4)
the table shows the elevation of four swimmers. Which swimmer dives down the farthest?A. Swimmer CB. Swimmer BC. Swimmer DD. Swimmer A
2^n+1 = 1/8solve each equation by solving Nthe answer is -4 but I need to solve how to do it
Which subatomic particle has no charge?A.) ElectronB.) NeutronC.) ProtonD.) Ion
What would this equation be of a line into slope-intercept form, simplifying all fractions 9x+12y=-108
