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andreyandreev [35.5K]
3 years ago
11

4. Solve using elimination. 4x -3y = 9 3x +2y = 11

Mathematics
2 answers:
UNO [17]3 years ago
8 0
Answer: (3,1)

Explanation:
Natali5045456 [20]3 years ago
3 0

Answer:

x=3, y=1

Step-by-step explanation:

2(4x-3y=9) Multiply these two equations to cancel out the y using elimination

3(3x+2y=11)

8x-6y=18 Add these two equations to cancel out the y using elimination

9x+6y=33

17x=51 Solve for x

x=3

4(3)-3y=9 Plug in x=3 into the original equation

3y=3 Solve for y

y=1

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b. 2.333

c. 2.85

Step-by-step explanation:

A) 1. subtract -x on both sides              2. to get 3x-1/2=7  

3. Add 1/2 on both sides                    4. to get 3x=7.5    

5. divide 3 on both sides                   6. To get... x=2.5

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C) 1. same process.                           2. 2x-x/3=3+7/4

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* remember to distribute the 3 to each variable.

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