Richellecheeidn
Answered

Makakuha ng mga maaasahang sagot sa iyong mga tanong sa IDNStudy.com. Ang aming platform ay nagbibigay ng mga maaasahang sagot upang matulungan kang gumawa ng matalinong desisyon nang mabilis at madali.

solve this using linear equation by Substitution
x+y=-2
2y=8

Sagot :

Shinalcantaraidn
Using Substitution Method:
x + y = -2    ----equation 1
2y = 8     -------equation 2
--------------------------------------
From equation 2
2y = 8
Divide the whole equation with 2
(2y = 8) ÷ 2
y = 4
--------------------------------------
Substitute y=4 to equation 1
x + y = -2
x + 4 = -2
x = -2 - 4
x = -6
--------------------------------------
Therefore the values of x and y are -6 and 4 respectively.
*end*
Dominiidn
[tex]Let \ 2y=8 \ be \ the \ first \ equation \\ Let \ x+y=-2 \ be \ the \ second \ equation \ \\ \\ \\ Let's \ begin \ the \ solution \ with \ the \ first \ equation; \\ \\ 2y=8 \\ \\ \frac{2y}{2}= \frac{8}{2} \\ \\ \boxed{y=4} \\ \\ Now \ the \ second \ equation; \\ \\ x+y=-2 \\ \\ Substitute y to 4; \\ \\ x+4=-2 \\ \\ x=-2-4 \\ \\ \boxed{x=-6} \\ \\ Conclusion; \\ \\ \boxed{Thus,x=-6 \ and \ y=4} \\ \\ Hope \ it \ help:) \\ Domini[/tex]