hxnnxh18 hxnnxh18

29-09-2016
Mathematics

Answered

how do you solve:

5x+6y=15

y=-4x-7

by the substitution method

Verified Answer :

FriendToDino FriendToDino

29-09-2016

5x+6y=15
y=-4x-7
To solve this, I would first substitute -4x-7 for y
5x+6(-4x-7)=15
Then distribute the terms in the 6(-4x-7) part
5x+-24x-42=15
Then simplify
-19x-42=15
Then add 42 to both sides
-19x=57
Divide -24 to both sides
x=57/-19 or -3
Then y=-4(-3)-7
y=12-7
y=5

Answer Link

Related Questions

Which of the following is a synonym for context as it relates to poetry Story Music Origin Author

A car whose mass is 1000kg is traveling at a constant speed of 10 ms2 Neglecting any friction how much force will the engine have to supply to keep going the sa

Please help me by giving me the CORRECT ANSWER

Which incident facility is positioned outside of the present and potential hazard area but close enough to the incident to maintain command a staging area b bas

Mrs Clarkson designed a rectangular garden with a length of 15 meters and a width of 8 meters she plans to build a walkway through the garden from one corner to

Work out the Hcf of 32 and 36

The car is showing it s its age 1 pointits its

critically discuss five negative and five positive impacts of these social networks on individuals rights to privacy and safety

What is the slope of the straight line through points 2424 and 5151

Which word is correctly used in the sentence I would my mind if it wasnt for you lose loose

Web Analytics Made Easy - Statcounter