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FromTheMoon [43]
3 years ago
15

To solve this system by substitution, which expression could be substituted for x

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0

Answer:

The answer is b

Step-by-step explanation:

you are substituting those numbers in for "x" because that is what the variable "x" will equal. To solve, you just simplify the terms.

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<u>Step-by-step explanation:</u>

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