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11 votes
50 points

enter the value of c when the expression 21.2x + c is equivalent to 5.3(4x - 2.6).

2 Answers

14 votes

Answer:

13.78

Explanation:

21.2x + c = 5.3(4x - 2.6)

open the bracket

21.2x + c = 21.2x - 13.78

collect like terms

c + 13.78 = 21.2x - 21.2x

c + 13.78 = 0

c = -13.78

User Steven Feldman
by
8.3k points
1 vote

Answer:

c = -13.78.

Explanation:

21.2x + c ≡ 5.3(4x - 2.6)

21.2x + c ≡ 21.2x - 13.78

Equating constant terms:

c = -13.78.

User AboQutiesh
by
8.4k points

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