Anyone know this will mark brain.....pic below..

Mike Berrow asked Jun 11, 2022

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Mike Berrow asked Jun 11, 2022

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19 votes

Answer:

15x + 30y - 220

Explanation:

(30 * (1)/(2) x ) + (30 * - 2) + (40 * (3)/(4) y )+( 40 * - 4)

= 15x - 60 + 30y - 160

$= 15x + 30y - 60 - 160 \\ = 15x + 30y - 220$

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