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saveliy_v [14]
3 years ago
14

Solve for x: -42 = -7x

Mathematics
2 answers:
DENIUS [597]3 years ago
5 0

Answer:

x=6

Step-by-step explanation:

-7x= -42

x= -42/-7

x=6

liberstina [14]3 years ago
3 0

Answer:

x=6

Step-by-step explanation:

-42= -7x divide -7 on both sides

6=x negatives cancel out

x=6 flip (not necessary but teachers like it this way)

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Step-by-step explanation:

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What is the Volume! ~
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can you solve the question but tell me how to do it I'm trying to study but don't know how to solve it?
Vedmedyk [2.9K]

Answer:

8x+19=9x+9

Step-by-step explanation:

Simplifying

(8x + 19) = (9x + 9)

Reorder the terms:

(19 + 8x) = (9x + 9)

Remove parenthesis around (19 + 8x)

19 + 8x = (9x + 9)

Reorder the terms:

19 + 8x = (9 + 9x)

Remove parenthesis around (9 + 9x)

19 + 8x = 9 + 9x

Solving

19 + 8x = 9 + 9x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-9x' to each side of the equation.

19 + 8x + -9x = 9 + 9x + -9x

Combine like terms: 8x + -9x = -1x

19 + -1x = 9 + 9x + -9x

Combine like terms: 9x + -9x = 0

19 + -1x = 9 + 0

19 + -1x = 9

Add '-19' to each side of the equation.

19 + -19 + -1x = 9 + -19

Combine like terms: 19 + -19 = 0

0 + -1x = 9 + -19

-1x = 9 + -19

Combine like terms: 9 + -19 = -10

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Divide each side by '-1'.

x = 10

Simplifying

x = 10

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