x-3x-1.2=4.8-5x

x-3x-1.2=4.8-5x

Namely
x-3x-1.2=4.8-5x
5x+x-3x=4.8+1.2
3x=6
x=2

The sum of 3x squared minus 5x minus 1 / 2 minus 3 plus 2x squared

The sum of 3x squared minus 5x minus 1 / 2 minus 3 plus 2x squared
=3x²-5x-1/2-3+2x²
=5x²-5x-7/2

Simplification 2 (3x-5) + 5x:
-2n-(3n-1)：
4a-2(a-3b)+3(b-a）：

2(3x-5)+5x
=6x-10+5x
=11x-10
-2n-(3n-1)
=-2n-3n+1
=-5n+1
4a-2(a-3b)+3(b-a）
=4a-2a+6b+3b-3a
=-a+9b
-（-x^)+2y^-1/2(-X^+4Y^)
=x^+2y^+1/2x^-2y^
=3/2x^

How to simplify 3x - (5x-2x)

3x-(5x-2x)
=3x-5x+2x
=0

4 (x ^ 2-5x) - (2x ^ 2 + 3x) simplification

Original formula = 4x & # 178; - 20x-2x & # 178; - 3x
=2x²-23x

3（5x+4）-（3x-5）

3（5x+4）-（3x-5）=15x+12-3x+5=12x+17．

Simplify the square of 3x-5x-2

The square of 3x-5x-2
=（3x+1）（x-2）

0.8−9x1.2−1.3−3x0.2＝5x+10.3

8 − 9x1.2 − 1.3 − 3x0.2 = 5x + 10.3, simplify: 8 − 90x12 − 13 − 30x2 = 50x + 103, remove denominator: 8-90x-6 (13-30x) = 4 (50x + 10), remove bracket, merge similar items: 110x = - 110, coefficient: 1: x = - 1

(1)1/3[1/2x-1/4(4/3x-2/3)]=1-1/3x (2)2x-0.5x+2/0.03=x/6-0.3(9x+8)/0.2 (3)|3x-1/-2|=7

(1)1/3[1/2x-1/4(4/3x-2/3)]=1-1/3x
1/2x-1/3x+1/6=3-x
1/6x+x=3-1/6
7/6x=17/6
x=17/7
(2)2x-0.5x+2/0.03=x/6-0.3(9x+8)/0.2
1.5x+200/3=x/6-3[9x+8]/2
9x+400=x-81x-72
89x=-472
x=-472/89
(3)|3x-1/-2|=7
(1):3x+1/2=-7
x=-5/2
(2)3x+1/2=7
x=13/6

The solution of 9x-5x = 16 is 3x + 6x = 990.5x + 1.5x = 99
Please clarify the point format: 5 + 0.8x = 13.8, 8x = 8.8 / 0.8x = 11

9x-5x=16
4x=16
x=4
3x+6x=99
9x=99
x=11
0.5x+1.5x=99
2x=99
x=49.5