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Marat540 [252]
3 years ago
11

What is the answer to -5x+5y=-10 and 3x-3y=5 using substitution

Mathematics
1 answer:
IceJOKER [234]3 years ago
7 0

Answer:

for the 1st one the answer is x= 3 y=1 and the second one is x= 5 and y = 3 and 1/3

Step-by-step explanation: so basically for the first one -5 times x which is 3 is -15 right? and then 5 times y which is 1 is 5 right so -15 plus 5 = -10

second one is x = 5 and y = 3 and 1/3 because 5*x which is 5 is = to 15 right? and then 3 times y which is equal to 3 and 1/3 is equal to 10 which when you do 15-10 in pretty sure it equals 5 correct me if im wrong

Hope this helps xD ;)

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

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  5. Division
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Step-by-step explanation:

<u>Step 1: Define</u>

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<u>Step 2: Solve for </u><em><u>y</u></em>

  1. Multiply 7 on both sides:                    -49 = y
  2. Rewrite:                                               y = -49
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