Упростим выражения:
1) 3(х+5)+4x = 3x + 15 + 4x = 7x + 15
2) 8(7+x)-3x = 56 + 8x - 3x = 5x + 56
3) 9(x-7)+6x = 9x - 63 + 6x = 15x - 63
4) 5(x+8)-11 = 5x + 40 - 11 = 5x + 29
5) 2(13+x)-15 = 26 + 2x - 15 = 2x + 11
6) 6(x+5)+2x = 6x + 30 + 2x = 8x + 30
Упростим выражения:
1) 3(х+5)+4x = 3x + 15 + 4x = 7x + 15
2) 8(7+x)-3x = 56 + 8x - 3x = 5x + 56
3) 9(x-7)+6x = 9x - 63 + 6x = 15x - 63
4) 5(x+8)-11 = 5x + 40 - 11 = 5x + 29
5) 2(13+x)-15 = 26 + 2x - 15 = 2x + 11
6) 6(x+5)+2x = 6x + 30 + 2x = 8x + 30