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Alenkasestr [34]
3 years ago
13

PLZ HELPPP its due in 10 minutes ;-;

Mathematics
2 answers:
Neporo4naja [7]3 years ago
8 0

Answer:

we have tow equation here

2x+y=25

and

x+y=20

so if we multiply the second equation with- and add it to the first equation we will find the x

x=5

and the we will fin the why by writing the value of the x in the equation you want

y=15

bearhunter [10]3 years ago
8 0

Answer:

<em>x=5  y=15</em>

Step-by-step explanation:

Solving by <u>Elimination</u>:

Multiply the bottom equation (<em>x+y=20</em>) by -1 to solve for x

Subtract <em>-x-y=-20 </em>from <em>2x+y=25</em> to get x=5

Now that you have solved for x, plug 5 back into the equation <em>2x+y=25 </em>and solve for y

<em />

<em>(2)(5)+y=25</em>

<em>10+y=25</em>

<u><em>-10    -10</em></u>

y=15

<em />

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