maths question solve answer of all
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(b) 15x - 6 = 1.5
15x = 15/10 + 6
15x = (15+60)/10
x = 75/(10 x 15)
x = 5/10
x = 0.5
(c)
6(2x+4) = 3(x-4)
12x+24 = 3x-12
12x-3x = -12-24
9x = -36
x = -36/9
x = -4
(d) 0.7(0.25x-0.3) = 0.05(0.2x-3)
0.185x-0.21 = 0.010x-0.15
0.185x-0.010x = -0.15+0.21
0.175x = 0.06
x = 0.06/0.175
x = 6000/17500
x = 60/175
x = 0.34
(e) 0.3x+0.5 = 0.4x-0.2
0.4x-0.3x = 0.5+0.2
0.1x = 0.7
x = 0.7/0.1
x = 70/10
x = 7
hope it helps....
anshika321:
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Answered by
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Heyyy!!!
Here is the answer to your query....
(b) 15x - 6 = 1. 5
15x = 1.5 + 6
15x = 7.5
x = 7.5/15
x = 0.5
(c) 2x+1/3 + 1 = x - 4/6
2x + 1 + 3/3 = x - 4/6
2x + 4/3 = x - 4/6
6(2x + 4) = 3(x - 4)
12x + 24 = 3x - 12
12x - 3x = - 12 - 24
9x = - 12
x = - 12/9
x = - 4/3
(d) 0.7(0.25x - 0.3) = 0.05(0.2x - 3)
1.75x - 2.1 = 0.1x - 1.5
1.75x - 0.1x = - 1.5 + 2.1
1.65x = 0.6
x = 0.6/1.65 = 2/55
(e) 0.3x + 0.5 = 0.4x - 0.2
0.3x - 0.4x = - 0.2 - 0.5
- 0.1x = - 0.7
x = 0.7/0.1
x = 7
Hope this is correct...
Please mark it as the brainliest one!!!
Regards
Here is the answer to your query....
(b) 15x - 6 = 1. 5
15x = 1.5 + 6
15x = 7.5
x = 7.5/15
x = 0.5
(c) 2x+1/3 + 1 = x - 4/6
2x + 1 + 3/3 = x - 4/6
2x + 4/3 = x - 4/6
6(2x + 4) = 3(x - 4)
12x + 24 = 3x - 12
12x - 3x = - 12 - 24
9x = - 12
x = - 12/9
x = - 4/3
(d) 0.7(0.25x - 0.3) = 0.05(0.2x - 3)
1.75x - 2.1 = 0.1x - 1.5
1.75x - 0.1x = - 1.5 + 2.1
1.65x = 0.6
x = 0.6/1.65 = 2/55
(e) 0.3x + 0.5 = 0.4x - 0.2
0.3x - 0.4x = - 0.2 - 0.5
- 0.1x = - 0.7
x = 0.7/0.1
x = 7
Hope this is correct...
Please mark it as the brainliest one!!!
Regards
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