Tolong ya hari ini dikumpulin.pliss

Tolong ya hari ini dikumpulin.pliss

Jawaban:

nilai x

$12x + 108 = 180 \ 12x = 180 - 108 \ 12x = 72 \ x = frac{72}{12} \ x = 6$

nilai y

$56 + 5x + 2y = 180 \ 56 + 5(6) + 2y = 180 \ 56 + 30 + 2y = 180 \ 86 + 2y = 180 \ 2y = 180 - 86 \ 2y = 94 \ y = frac{94}{2} \ y = 47$

nilai z

$12x + 56 + 4z = 180 \ 12(6) + 56 + 4z = 180 \ 72 + 56 + 4z = 180 \ 128 + 4z = 180 \ 4z = 180 - 128 \ 4z = 52 \ z = frac{52}{4} \ z = 13$

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