Charmainenmoonidn
Answered

Find solutions to your problems with the expert advice available on IDNLearn.com. Join our Q&A platform to access reliable and detailed answers from experts in various fields.

Solve by Substitution

y= -3/2x -4

y= -1/2x =1

Sagot :

[tex]\begin{cases}y= - \frac{3}{2}x -4 \\ y= - \frac{1 }{2}x +1 \end{cases}\\ \\\begin{cases}y= - \frac{3}{2}x -4 \\ - \frac{3}{2}x -4 = - \frac{1 }{2}x +1 \end{cases}\\ \\\begin{cases}y= - \frac{3}{2}x -4 \\ - \frac{3}{2}x +\frac{1 }{2}x=1+4 \end{cases}\\ \\ \begin{cases}y= - \frac{3}{2}x -4 \\ - \frac{2}{2}x=5 \end{cases}[/tex]

[tex]\begin{cases}y= - \frac{3}{2}x -4 \\ - x=5/*(-1) \end{cases}\\ \\ \begin{cases}y= - \frac{3}{2}*(-5)-4 \\ x=-5 \end{cases}\\ \\ \begin{cases}y= \frac{15}{2}-4 \\ x=-5 \end{cases}\\ \\ \begin{cases}y= 7\frac{1}{2}-4 \\ x=-5 \end{cases}\\ \\ \begin{cases}y= 3\frac{1 }{2} \\ x=-5 \end{cases}\\ \\[/tex]
[tex] \left\{\begin{array}{ccc}y=-\frac{3}{2}x-4\\\\y=-\frac{1}{2}x+1\end{array}\right\\\\-\frac{3}{2}x-4=-\frac{1}{2}x+1\ /\cdot2\\\\-3x-8=-x+2\\\\-3x+x=2+8\\\\-2x=10\ /:(-2)\\\\x=-5\\\\y=-\frac{1}{2}\cdot(-5)+1=2,5+1=3,5\\\\ \left\{\begin{array}{ccc}x=-5\\y=3,5\end{array}\right[/tex]
Your participation means a lot to us. Keep sharing information and solutions. This community grows thanks to the amazing contributions from members like you. Your questions find clarity at IDNLearn.com. Thanks for stopping by, and come back for more dependable solutions.