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Evaluate the expression when x = -1/4 and y = -9/7
2x+|y|

Sagot :

skelekitty03
Answer:

2x+|y| = 11/14

Explanation:

First, substitute variables.

2(-1/4) + |-9/7|

Change the whole number into a fraction for easier multiplication. The absolute value around -9/7 removes the negative, so it becomes positive 9/7.

= (2/1 * -1/4) + 9/7

= -2/4 + 9/7

= -1/2 + 9/7

Next, find a common denominator to add fractions. When you multiply fractions, multiply numerators with each other and denominators with each other.

(-1/2 * 7/7) + (9/7 * 2/2)

= -7/14 + 18/14

When you add fractions with a common denominator, keep the same denominator and add numerators.

-7/14 + 18/14 = 11/14
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