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Mashutka [201]
3 years ago
15

Solve the system of equations below.

Mathematics
1 answer:
andreev551 [17]3 years ago
4 0

Answer:

fewaaaaa

Step-by-step explanation:

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Given the system of linear equations.
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Part(A):

To solve the system of Linear equations using Substitution:

x+y=7 \\ 2x+y=5

Consider the first equation, x+y=7 implies x=7-y

\mathrm{Subsititute\:}x=7-y

2\left(7-y\right)+y=5

14-2y+y=5

14-y=5

\mathrm{Subtract\:}14\mathrm{\:from\:both\:sides}

14-y-14=5-14

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\mathrm{Divide\:both\:sides\:by\:}-1

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x=7-9=-2.\mathrm{The\:solutions\:to\:the\:system\:of\:equationts\:are:}

y=9,\:x=-2

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Using Desmos graphing calculator, graph the two equations.

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