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11 votes
— 3х – 4y = 2
—5 = 5x +5y
Systems of equations with substitution

User Cyrbil
by
8.5k points

1 Answer

6 votes

Answer:Rewrite

(

3

x

4

y

)

2

as

(

3

x

4

y

)

(

3

x

4

y

)

.

(

3

x

4

y

)

(

3

x

4

y

)

Expand

(

3

x

4

y

)

(

3

x

4

y

)

using the FOIL Method.

Tap for fewer steps...

Apply the distributive property.

3

x

(

3

x

4

y

)

4

y

(

3

x

4

y

)

Apply the distributive property.

3

x

(

3

x

)

+

3

x

(

4

y

)

4

y

(

3

x

4

y

)

Apply the distributive property.

3

x

(

3

x

)

+

3

x

(

4

y

)

4

y

(

3

x

)

4

y

(

4

y

)

Simplify and combine like terms

Simplify each term.

9

x

2

12

x

y

12

y

x

+

16

y

2

Subtract

12

y

x

from

12

x

y

.

9

x

2

24

x

y

+

16

y

2

Explanation:

User Hoon
by
7.3k points

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