3 years ago

Solve the system by the addition method.

Mathematics

1 answer:

Minchanka [31]3 years ago

6 0

Answer:

(3,0)

Step-by-step explanation:

4x+8y=`12--------------------------(1)

3x-8y=9-----------------------------(2)

By adition method the y terms will cancel. +8y+-8y=0 hence

4x+3x=12+9

7x=21----------------------------divide both sides by 7 to get x

7x/7=21/7

x=3.....................substitute value of x in equation (1)

4x+8y=12

4(3)+8y=12

12+8y=12

8y=12-12

8y=0

y=0

solutions

x=3, y=0

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