Question

Please help me I need it ASAP

Answer 1

what do you need help with I do not understand

Answer 2

1.) -(2n - 12 - n) - 21 - 7 - (-(-4n + 3 - 2n)) - 12

Multiply the - into (2n - 12 - n), and multiply the - into (-4n + 3 - 2n)

-2n + 12 + n - 21 - 7 - (4n - 3 + 2n) - 12

Multiply/distribute the - into (4n - 3 + 2n)

-2n + 12 + n - 21 - 7 - 4n + 3 - 2n - 12

Combine like terms

-7n - 25

2.) -0.2(-9b + 4) - 0.4(2b - 3) + 0.3(b + 6) - 2

Multiply -0.2 into (-9b + 4), multiply -0.4 into (2b - 3), and multiply 0.3 into (b + 6)

1.8b - 0.8 - 0.8b + 1.2 + 0.3b + 1.8 - 2

Combine like terms

1.3b + 0.2

3.) 0.2b + 3(-9b + 4) - 0.4(2b - 3) + 0.3(b + 6 - 2b)

0.2b + 3(-9b + 4) - 0.4(2b - 3) + 0.3(6 - b)

0.2b - 27b + 12 - 0.8b + 1.2 + 1.8 - 0.3b

-27.9b + 15

4.) $\frac{2}{3} (9x + 6-18x)-\frac{2}{7}(-7x+10-14x-(-4)-8)$

$\frac{2}{3} (6-9x)-\frac{2}{7} (-21x+ 6)$   Simplify the numbers/variables inside the parentheses first, then multiply 2/3 into (6 - 9x), and multiply -2/7 into (-21x + 6)

4 - 6x + 6x - $\frac{12}{7}$

$\frac{28}{7} - \frac{12}{7} = \frac{16}{7}$

16/7

5.) $\frac{3}{5} (-(-x +15-11x)) - \frac{1}{4} (13x +12-17x-16)+11$

$\frac{3}{5} (12x-15)-\frac{1}{4} (-4x-4)+11$

$\frac{36}{5} x-9+x+1+11$

$\frac{36}{5} x + 3 + x$

$\frac{36}{5} x + 3 + \frac{5}{5}x$

$\frac{41}{5}x + 3$

41/5x + 3