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Mathematics, 27.10.2019 04:43 jeniferfayzieva2018
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation.
−x + 5y = 1
2x + 4y = −4
choices:
2(5y − 1) + 4y = −4
2(−5y + 1) + 4y = −4
2x + 4(−5y + 1) = −4
2x + 4(5y − 1) = −4
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