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3 years ago

i need to know if any one can help me explain to my son how multi- step equations work like this ...8(8v-7)=12-4v

Mathematics

1 answer:

Tanzania [10]3 years ago

7 0

8(8v-7)=12-4v

multiply the bracket by 8

(8)(8v)=64v

(8)(-7)=-56

64v-56=12-4v

move -4v to the other side

sign changes from -4v to +4v

64v+4v-56=12+4v

68v-56=12+4v-4v

68v-56=12

move -56 to the other side

sign changes from -56 to +56

68v-56+56=12+56

68v=12+56

68v=68

divide both sides by 68 to get v by itself

68v/68=68/68

cross out 68 and 68, divide by 68

then becomes 1*1*v=v

v=68/68

Divide the fraction by 68

68/68=1, 68/68=1

1*1=1

Answer:

v=1

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i need to know if any one can help me explain to my son how multi- step equations work like this ...8(8v-7)=12-4v​

i need to know if any one can help me explain to my son how multi- step equations work like this ...8(8v-7)=12-4v