kit0058
kit0058
02-03-2017
Mathematics
contestada
solve by elimination
Respuesta :
roseberline
roseberline
02-03-2017
2x - 2y = -4
-3x -3y = 0
_____________________
-1x - 5y = -4
Answer Link
H1a2r3s4h5
H1a2r3s4h5
02-03-2017
2x-2y=-4
Multiply eq.by 3
6x-6y=-12
-3x-3y=0
Multiply eq.by 2
-6x-6y=0
from both new eq.
6x-6y=-12
-6x-6y=0
So adding both eq. We get
-12y=-12
So y=1
From eq.1
2x-2y=-4
2x-2(1)=-4
2x-2=-4
2x=-4+2
2x=-2
x=-1
so x=-1 and y=1
Answer Link
VER TODAS LAS RESPUESTAS ( 47+ )
Otras preguntas
Choose an equation in slope-intercept form for the line that passes through (-12,3) and is perpendicular to the y= -(2/3)x-11.
what is the smallest whole number that will round to 80
why does the moon appear to be different sizes why does the moon appear to be different sizes
Jamie baked 24 biscuits. Her sister Mia ate 3 biscuits and her brother ate 2 biscuits. Which expression can Jamie use to find how many biscuits are left?
Never shall I forget those flames that consumed my faith forever. Which key idea can you deduce from the excerpt above? confusion hopelessness vengeance
Solve and graph the absolute value inequality: |4x + 1| ≤ 5. a. number line with closed dots on −1.5 and 1 with shading going in the opposite directions. b. num
how do if figure out if 6m+4=8 then 4=
1. Unlike other prisoners, the men in Span One felt no ____. A. compassion B. anger C. guilt D. fear 2. Brille worked as a ______ before going to prison. A. t
what is the cause of mass wasting a. kinetic energy b. thermal energy c. gravity d. expansion
A devout muslim is expected to do all of the following, except. a. dress modestly b. avoid eating pork c. have a shrine to Muhammad in the home d. abstain fro
