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nlexa [21]
3 years ago
14

X + y = 7 x - 3y = 5

Mathematics
2 answers:
taurus [48]3 years ago
7 0

Answer:

x+y=7

x-3y=5

0+4y=12

4y=12

y=3

x+y=12

x+4=12

x=12-4

x=8

x=8,y=3

OLEGan [10]3 years ago
4 0

Answer:

x= 3.5 y=1.5

Step-by-step explanation:

plug in answers to check

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\bf (\stackrel{x_1}{-5}~,~\stackrel{y_1}{-6})~\hspace{10em} \stackrel{slope}{m}\implies 1 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-6)}=\stackrel{m}{1}[x-\stackrel{x_1}{(-5)}] \\\\\\ y+6=1(x+5)\implies y+6=x+5\implies y=x-1

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