Respuesta :
Hi there,
1)
6 + (w - 10) = 5
6 + w - 10 = 5
- 4 + w = 5
w = 5 + 4
Hence, W = 9
2)
2/3 + y - 1/9 = 7/9
5/9 + y = 7/9
y= 7/9 - 5/9
Hence, Y = 2/9
4)
4x - 3/2x - 15/4 = 3/8
32x - 12x - 30 = 3
20x - 30 = 3
20x = 3 + 30
20x = 33
Hence, the answer is 33/20
5)
0.7(3s + 4) - 1.1s = 7.9
2.1s + 2.8 - 1.1 = 7.9
s + 2.8 = 7.9
s = 7.9 - 2.8
Hence, the answer is 5.1
Hope this all helps :)
1)
6 + (w - 10) = 5
6 + w - 10 = 5
- 4 + w = 5
w = 5 + 4
Hence, W = 9
2)
2/3 + y - 1/9 = 7/9
5/9 + y = 7/9
y= 7/9 - 5/9
Hence, Y = 2/9
4)
4x - 3/2x - 15/4 = 3/8
32x - 12x - 30 = 3
20x - 30 = 3
20x = 3 + 30
20x = 33
Hence, the answer is 33/20
5)
0.7(3s + 4) - 1.1s = 7.9
2.1s + 2.8 - 1.1 = 7.9
s + 2.8 = 7.9
s = 7.9 - 2.8
Hence, the answer is 5.1
Hope this all helps :)
1. 6+w-10= 5
collect the like terms
6-10+w= 5
-4+w= 5
w= 5+4
w= 9
2. solve for d
1.2+d+0.4= 9.7
collect the like terms
1.2+0.4+d= 9.7
1.6+d= 9.7
d= 9.7-1.6
d= 8.1
3. 2/3+y-1/9= 7/9
collect the like terms
5/9+y= 7/9
y= 7/9-5/9
y= 2/9
4. 21/2x - 3/4(2x+5)= 3/8
5/2x - 3/4(2x+5)= 3/8
5/2x -6/4x -15/4= 3/8
collect the like terms
4x/4-15/4= 3/8
x-15/4= 3/8
x= 3/8+15/4
x= 33/8
5. 0.7(3s+4)-1.1s= 7.9
collect the like terms
2.1s+2.8-1.1s=7.9
2.1s-1.1s+2.8= 7.9
s= 7.9-2.8
s= 5.1
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