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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.
βx + 5y = 1
2x + 4y = β4
choices:
2(5y β 1) + 4y = β4
2(β5y + 1) + 4y = β4
2x + 4(β5y + 1) = β4
2x + 4(5y β 1) = β4
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