0.8x + 0.9 = 2 x + 5 + 0.3 0.3-0.2x 3 / 3 x + 2 minus 1 = 7x-3 / 5 + 2 / 15 (X-2) 0.2 x + 4-0.5 x-3 = - 1

0.8x + 0.9 = 2 x + 5 + 0.3 0.3-0.2x 3 / 3 x + 2 minus 1 = 7x-3 / 5 + 2 / 15 (X-2) 0.2 x + 4-0.5 x-3 = - 1

5x + 0.9 = 2x + 5 + 1-0.2
5 / 8x-2 / x = 5 + 1-0.2-0.9
11x of 15 = 4.9
X = 4.9 × 15 / 11
Multiply both sides of the equation by 15
5（3x+2-1）＝3（7x-3）＋2（x-2）
15x+5=21x-9+2x-4
15x-21x-2x=-9-4-5
-8x=-18
X = 9 / 4
x+4)/0.2-(x-3)/0.5=-1
5 (x + 4) - 2 (x - 3) = - 1, the decimals are eliminated first, and the integer is better than the decimals
5x+20-2x+6=-1
3x=-27
x=-9

The solution of equation 1.5-y = 36,

Equation 1.5-y = 36
-y=36-1.5
-y=34.5
y=-34.5

To solve an equation,
950N + (1 / 2) n (n-1) times (- 100) = 5000
Find n

The result is 1900n-100 (n-square-n) = 10000
100N square - 2000 n + 10000 = 0
N square - 20n + 100 = 0
（n-10）（n-10）=0
n=10

Do me a favor and see how to solve the following equation,
①(x-1)/3-(x-2)/6=(4-x)/2-1 ②3x+(x-1)/2=3-(2x-1)/3
③(2x-1)/3-(10x+1)/12=(2x+1)/4-1

①2（x-1)/6-(x-2)/6=(4-x)/2-2/2=>>(2x-2-x+2)/6=(4-x-2)/2=>>x/6=2-x/2=>>2x=6(2-x)=>>8x=12=>>x=3/2②3x+x/2-1/2=3-2x/3+1/3=>>7x/2+2x/3=3+1/3+1/2=>>25x/6=23/6=>>x=23/25③(8x-4-10x+1)/12=(2x+1-4)/4=>>(-2x-...