Question

@6x+2x+9=8b)8x+3x-x-10=120c)7x+15+2x=6x+39esto significa / sobred)x/4-6=24e)3x-6/9=3f)2x-1≥37g)3x+4≤22h)4x+9≥57

Answer 1

6x+2x+9=8
8x + 9 = 8
8x = 8 - 9
8x = - 1
x = - 1/8


8x+3x-x-10=120
11x - x - 10 = 120
10x - 10 = 120
10x = 120 + 10
10x = 130
x = 130/10
x = 13



7x+15+2x=6x+39
9x + 15 = 6x + 39
9x - 6x = 39 - 15
3x = 24
x = 24/3
x = 8


x/4-6=24
x/4 = 24 + 6
x/4 = 30
x = 4 (30)
x = 120



3x-6/9=3
3x = 3 + 6/9
3x = (3 * 9 + 6)/9
3x = (27 + 6)/9
3x = 33/9
x = 33/9/3
x = 33/27
x = 11/9



2x-1≥37
2x ≥ 37 + 1
2x ≥ 38
x ≥ 38/2
x ≥ 19


3x+4≤22
3x ≤ 22 - 4
3x ≤ 18
x ≤ 18/3
x ≤ 6


4x+9≥57
4x ≥ 57 - 9
4x ≥ 48
x ≥ 48/4
x ≥ 12