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Answers
Answer:
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Step-by-step explanation:
1. 2x+1= 5
= 2x= 5-1
= 2x= 4
= x= 4/2
= x= 2
2. 6y-5 = 19
= 6y= 19+5
= 6y = 24
= y= 24/6
= y= 4
3. 3+4y= -5
= 4y= (-5)-3
= 4y = -8
= y= -8/4
= y = -2
4. 2/3p = 6
= 2p= 6×3
= 2p = 18
= p= 18/2
= p= 9
5. 5y+10 = 4y-10
= 5y-4y = (-10)-10
= y = -20
6. 1/2x+3 = 5
= 1/2x= 5-3
= 1/2x= 2
= x= 2×2
= x = 4
7. 3(x+1) = 6
= 3x+3 = 6
= 3x= 6-3
= 3x = 3
= x= 3/3
= x= 1
8. 4(x-2) = -8
= 4x-8= -8
= 4x = -8+8
= 4x= -1
= x= -1/4
9. 3x+8 = 5x+2
= 8-2= 5x-3x
= 6 = 2x
= x= 6/2
= x = 3
10. 1/3x+11= 14
= 1/3x = 14-11
= 1/3x = 3
= x= 3×3
= x= 9
11. x-5/4= 3
= x-5 = 3×4
= x-5 = 12
= x = 12+5
= x= 17
12. z+3/4=17
= z+3 = 17×4
= z+3= 68
= z = 68-3
= z = 65