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

Answer:

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

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

$3.\ \frac{1}{2}(10x) + 7 - 3 = 5x + 4$

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

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

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

Step-by-step 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, $9(3x) = 27x$

$3.\ \frac{1}{2}(10x) + 7 - 3$

Open bracket

$\frac{1}{2} * 10x + 7 - 3$

$5x + 7 - 3$

$5x + 4$

The expression can't be solved further;

Hence, $\frac{1}{2}(10x) + 7 - 3 = 5x + 4$

$4.\ -5(4x)$

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