Question

Guys please help me, what is 10+x+ 8, what is 9(3x), what is 1/2 (10x) + 7-3, what is -5 (4x), what is 10 - 2 (8x) - 3 , and what is 3(7x) + 3 (-5)

Answer 1

`1.\ 10+x+ 8 = 18+ x`

`2.\ 9(3x) = 27x`

`3.\ (1)/(2)(10x) + 7 - 3 = 5x + 4`

`4.\ -5(4x) = -20x`

`5.\ 10 - 2 (8x) - 3 = 7 - 16x`

`6.\ 3(7x) + 3 (-5) = 21x -15`

Explanation:

Required

Solve each expression

`1.\ 10+x+ 8`

Start by collecting like terms

`10+ 8+x`

Add like terms

`18+x`

The expression can't be solved further

Hence;
`10+x+ 8 = 18+ x`

`2.\ 9(3x)`

Open the bracket

`9 * 3x`

`27x`

The expression can't be solved further

Hence,
`9(3x) = 27x`

`3.\ (1)/(2)(10x) + 7 - 3`

Open bracket

`(1)/(2) * 10x + 7 - 3`

`5x + 7 - 3`

`5x + 4`

The expression can't be solved further;

Hence,
`(1)/(2)(10x) + 7 - 3 = 5x + 4`

`4.\ -5(4x)`

Open the bracket

`-5 * 4x`

`-20x`

The expression can't be solved further

Hence,
`-5(4x) = -20x`

`5.\ 10 - 2 (8x) - 3`

Open Bracket

`10 - 2 *8x - 3`

`10 - 16x - 3`

Collect like terms

`10 - 3 - 16x`

`7 - 16x`

The expression can't be solved further

Hence,
`10 - 2 (8x) - 3 = 7 - 16x`

`6.\ 3(7x) + 3 (-5)`

Open both brackets

`3*7x + 3 * -5`

`21x -15`

The expression can't be solved further

Hence,
`3(7x) + 3 (-5) = 21x -15`