Question

9*x+12+7*x=
7*c+15a+8*c=
32+8x+4*(5x+15)+13=
Упрастить уравнения

Answer 1

1.9х+12+7х=16х+12=4(4х+3) 2. 7с+15а+8с=15с+15а=15(а+с) 3. 32+8х+4(5х+15)+13= 4(8+2х+5х+15)+13= 4(23+7х)+13