1.-5×+10+3x-9=2.(7×+4)-(5×-1)=3.(-2y+8)-(3y+7)4.(10×-35):5=5.(-6a+9):(-3)=

1.-5×+10+3x-9=2.(7×+4)-(5×-1)=3.(-2y+8)-(3y+7)4.(10×-35):5=5.(-6a+9):(-3)=

NOMOR 1.

$- 5x + 10 + 3x - 9$

$= 3x - 5x + 10 - 9$

$= - 2x + 1$

NOMOR 2.

$(7x + 4) - (5x - 1)$

$= 7x + 4 - 5x + 1$

$= 7x - 5x + 4 + 1$

$= 2x + 5$

NOMOR 3.

$( - 2y + 8) - (3y + 7)$

$= - 2y + 8 - 3y - 7$

$= - 2y + 3y + 8 - 7$

$= - 5y + 1$

NOMOR 4.

$frac{(10x - 35)}{5} = frac{10x}{5} - frac{35}{5} = 2x - 7$

NOMOR 5.

$frac{( - 6a + 9)}{ - 3} = frac{ - 6a}{ - 3} + frac{9}{ - 3} = 2a + ( - 3) = 2a - 3$