8,75×a+7,5×21 = 8×(a+21) tentukanlah a.... Question from @Jevinsagala

May 2020 2 21 Report

8,75×a+7,5×21 = 8×(a+21)
tentukanlah a

YL27 8,75a + 157,5 = 8a + 168

8,75a - 8a = 168 - 157,5

0,75a = 10,5

a = 10,5 ÷ 0,75 = 14

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putraprasetia
$875 \times a + 7.5 \times 21 = 8 \times (a + 21) \\ 8.75a + 157.5 = 8a + 168 \\ 0.75a = 10.5 \\ a = 14$

semoga membantu :)

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