Answered

IDNLearn.com provides a seamless experience for finding and sharing answers. Find in-depth and accurate answers to all your questions from our knowledgeable and dedicated community members.

y-3x=2
y=-2x-8
how do i solve this by substitution

Sagot :

Luanaidn
[tex] \left \{ {{y-3x=2} \atop {y=-2x-8}} \right. \\\\Substitute\ second\ equation to\ first:\\\\-2x-8-3x=2\\-2x-3x=2+8\\-5x=10\ \ \ \ \ \ |:-5\\x=-2\\\\y=-2\cdot(-2)-8\\y=4-8\\y=-4\\\\ \left \{ {{y=-4} \atop {x=-2}} \right. [/tex]
y-3x=2
y=-2x-8
-2x-8-3x=2
-5x-8=2 add 8 from both side
-5x=10 divided -5 both side
x=-2
We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. Thanks for visiting IDNLearn.com. We’re dedicated to providing clear answers, so visit us again for more helpful information.