Question

Упростить 6*(х+6.5)-4*(4.4+х)

Answer 1

6*(х+6.5)-4*(4.4+х) =6х+6*6,5-4*4,4 -4х=6х-4х+39-17,6=2х+21,4

Answer 2

6(x+6,5) - 4(4,4+x)
6(x+65/10) - 4(44/10+x)
6(x+13/2) - 4(22/5+x)
2(3(x+13/2) - 2(22/5+x)
2(3x+39/2-44/5-2x)
2(x+195-88/10)
2(x+107/10)