Question

(42,2х-13,8):0,12=307
Допожіть

Answer 1

$(42.2x - 13.8) \div 0.12 = 307 \\ 42.2x - 13.8 = 307 \times 0.12 \\ 42.2x - 13.8 =36.84 \\ 42.2x = 36.84 + 13.8 \\ 42.2x = 50.64 \\ x = 50.64 \div 42.2 \\ x = 506.4 \div 422 \\ x = 1.2$