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TEA [102]
3 years ago
5

Solve for the variable. -2x = -15

Mathematics
1 answer:
MakcuM [25]3 years ago
8 0
The variable is x=15/2
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Answer:

a. =11+ 1

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Step-by-step explanation:

a. 20 - 9 + 8 -7

=11+ 1  ( this is obtained by solving)

b. 4x - 7y - 5z + 6

=4x+ (-7y) + (-5z) +6

We multiply the negative sign with the positive sign to get a minus so the answer remains the same and the expression is written as an addition sum.

c. -3x - 8y - 4 - 8/7z

-[ 3x+8y+4+8/7z]

or

(-3x) + (-8y) +(-4) +(-8/7z)

The minus sign is taken as common leaving the expression with the plus only.

It can be written in the same manner as above, adding the negative terms so that the expression is written as a sum.

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Answer:

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Step-by-step explanation:

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