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2 years ago

Solve for c:c5-3= -15PLEASE SHOW WORK!!!

Mathematics

1 answer:

White raven [17]2 years ago

7 0

Answer:

c = -2.4 or -12/5

Step-by-step explanation:

5c - 3 = -15

First we need to add 3 to both sides so,

5c - 3 + 3 = -15 + 3

so we can now solve it

5c = -12 then we divide 5 by both sides

c = -12 / 5

c = -2.4

The fraction form is -12/5

The decimal form is -2.4

Hope this helps!!

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Apply to Row 2 : Row 2 + Row 1

2x + 2y + 3z = 0

y + 4z = -3

2x + 3y + 3z = 5

Apply to Row 3: Row 3 - Row 1

2x + 2y + 3z = 0

y + 4z = -3

y = 5

Apply to Row 3: Row 3 - Row 2

2x + 2y + 3z = 0

y + 4z = -3

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Simplify rows

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Note that the matrix is in echelon form now. The next steps are for back substitution.

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Apply to Row 1: Row 1 - 2 Row 2

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