babycakes201220150 babycakes201220150

03-10-2021
Mathematics

contestada

3x -4y= -20 -x +2y =10 whats the value of y

Respuesta :

soccerfan54 soccerfan54

03-10-2021

3x-4y=10
-20-x+2y=10 then -30+2y=x now plug this in the other equation:
3(-30+2y)-4y=10
-90+6y-4y=10
2y=100
y=50

Answer Link

Otras preguntas

what do a mole of magnesium (mg) and a mole of iron (fe) have in common

one third of the square root of which number is 0.001

A point is _____. imaginary real

currently there are amendments to the us constitution that safeguard citizens’ rights.

raising the temperature of a gas will increase its pressure If which of the following happens the volume is increased but the number of particles is constant B

caleb has a complicated and difficult research paper due soon. what should he do to keep from feeling overwhelmed and procrastinating?

can i get some help i dont get it

Write the equation, in slope-intercept form, of the line that has a slope of 2 and passes through the point (3, 1).

production shows that only 3 of the first 10 phones are working, which is 30% of the phones. describe how the percentage of working phones changes if the eleven

six times the sum of a number and twelve is forty. which equation represents this? 6n 12n = 40 6n 12 = 40 6(n 12) = 40