It will mean a whooole lot for me if you answer

1 ) 180 - 71 = 109

2) 5x +x = 180 ;  6x = 180 ; x = 180/6 = 30

3) 90

4) x + 6x+8 + x+12 =  180 ;  8x + 20 = 180 ;  8x = 160/8= 30

5)  180 -110 = 70

6) m = 180- 119 = 61

7) 90

8) 11y - 36 = 63 ;  y = 99/11 = 9

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(Q7) 180

(Q8) 2x+x = 3x = 90 ;  x = 90/3 = 30

(Q15) 157

(Q16) 5x + 4 + (x-2) + (3x+7) = 180

       9x +9 = 180 ;   x = 171 / 9 = 19

I hope im right!!

the answer is 15% decrease

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.