Select the correct answers (there are more than one that are correct)

Mathematics

1 answer:

Liono4ka [1.6K]3 years ago

4 0

Answer:

its really good luck for you know what is not my phone

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Pls help me!!! urgent math HW!!! will give brainliest!!!!!!! do 1-7 odds.. THX!!!!

qaws [65]

do want the odds here is the odds

A / B =

1 / 7 =

1/7

7 0

3 years ago

4x - 7y = 3 x - 7y = 15

charle [14.2K]

$\left \{ {{4x-7y=3} \atop {x-7y=15}} \right. \\\\
 \left \{ {{4x-7y=3} \atop {x=15+7y}} \right. \\\\ substitution\ method\\\\
4*(15+7y)-7y=3\\\\
60+28y-7y=3\\\\
60+21y=3\ \ \ \ | subtract\ \\\\
21y=-57\\\\
y=-\frac{57}{21}=-\frac{19}{7}\\\\
x=15+7*(-\frac{19}{7})=15-19=-4\\\\\ Solution :\ \left \{ {{y=-\frac{19}{7}} \atop {x=-4}} \right.$