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2 years ago

If 3n + 7 = 25, then find the value of the expression 8n - 3]

Mathematics

1 answer:

daser333 [38]2 years ago

3 0

Answer:

n=6,

SAS,

Step-by-step explanation:

3n+7=25

3n=25-7

3n=18

n=18/3

n=6

_______________________________

ΔDEF is congruent to ΔXYZ

DE=XY(side)

<E=<Y (angle)

EF=YZ (side)

by SAS congruence criteria ΔDEF=ΔXYZ

_________________________

(Linear pair)

180°-117°

=63

Answer=63

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