Question

СРОЧНО!!!!!!!!!!!!!
решите уравнение 1.3х+4.8=2.9х-7.2

Answer 1

$1.3x + 4.8 = 2.9x - 7.2 \\ 2.9x - 1.3x = 7.2 + 4.8 \\ 1.6x = 12 \\ x = 12 \div 1.6 =7.5$