3 years ago

-5x + y = -2 -3x + 6y = -12 Solve for both x and y using substitution.

Mathematics

1 answer:

Ulleksa [173]3 years ago

4 0

First you would solve both of the equations, then you would use the subsitution method

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$f(10) = 35 \\ \\ f( - 11) = 39 \\ \\ f(12) = 53 \\ \\ f(2) = 13$

Step-by-step explanation:

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To solve for the following substitute the value of x in the brackets into the above formula and solve for the value of x

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So we have

$f( - 10) = | - 5 - 4( - 10)| \\ = | - 5 + 40| = 35 \\ \\ f( - 11) = | - 5 - 4( - 11)| \\ = | - 5 + 44| = 39 \\ \\ f(12) = | - 5 - 4(12)| \\ = | - 5 - 48| \\ = | - 53| = 53 \\ \\ f(2) = | - 5 - 4(2)| \\ = | - 5 - 8| = | - 13| \\ = 13$

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