-20x - 10y = 20 10x + 5y = -10

Mathematics

1 answer:

romanna [79]4 years ago

3 0

Answer:

5 • (4xy + 2x - 3y)

Step-by-step explanation:

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PLEASE HELP ME I HAVE TO GET THIS DONE BEFORE IN 10 MINUTES, ILL GIVE BRAINLIEST Determine whether the triangles are similar. If

Gelneren [198K]

Answer:

2nd one

Step-by-step explanation:

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8 0

3 years ago

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Solve the simultaneous equations <br> 5x + 6y = 3<br> 2x - 3y = 12

Serhud [2]

Answer: x =3; y = -2

$\left \{ {{5x+6y=3} \atop {2x-3y=12}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {2x-3y=12}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {2.\frac{3-6y}{5}-3y =12}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {6-12y-15y=12.5}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {17y=6-60=-54}} \right.\\\\\left \{ {{x=\frac{3-6y}{5} } \atop {y=-54/27}} \right.\\\\\\ \left \{ {{x=\frac{3-6y}{5} } \atop {y=-2}} \right.\\\\\left \{ {{x=3} \atop {y=-2}} \right.$