Question

Rezolvati ecuatia:
[3•(x + -2,7)-4,2]:1,5=7,2
Va rog repede in 30 min plec la scoala.
Dau coroana!

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Answer 1

$3 \times (x - 2.7) - 4.2 = 7.2 \times 1.5 = 10.8$

$3 \times (x - 2.7) = 10.8 + 4.2 = 15$

$x - 2.7 = 15 \div 3$

$x - 2.7 = 5$

$x = 5 + 2.7$

$x = 7.7$

Answer 2

(3x-7,4) :1.5=7,2

2x -4,9=7,2

2x =12,1

x = 6,05