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3 years ago

9x-7i>3(3x-7u) help pls

Mathematics

1 answer:

Arisa [49]3 years ago

8 0

Answer

Simplifying

9x + -7i = 3(3x + -7u)

Reorder the terms:

-7i + 9x = 3(3x + -7u)

Reorder the terms:

-7i + 9x = 3(-7u + 3x)

-7i + 9x = (-7u * 3 + 3x * 3)

-7i + 9x = (-21u + 9x)

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

-7i + 9x + -9x = -21u + 9x + -9x

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

-7i + 0 = -21u + 9x + -9x

-7i = -21u + 9x + -9x

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

-7i = -21u + 0

-7i = -21u

Solving

-7i = -21u

Solving for variable 'i'.

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

Divide each side by '-7'.

i = 3u

Simplifying

i = 3u

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