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Answers
Answer:
17 question
Step-by-step explanation:
2x - 3 = 3 /10(5x - 12 )
10 ( 2x - 3 ) = 3 ( 5x - 12 )
20 x - 30 = 15 x - 36
20 x - 15 x = - 36 + 30
5x = - 6
x = - 6 /5
14 question:::::::
t - ( 2t + 5 ) - 5 ( 1 - 2t ) = 2 ( 3 + 4t ) - 3 ( t - 4 )
t - 2t - 5 - 5 + 10 t = 6 + 8t - 3t + 12
t - 2t - 8t + 3t = 6 + 12 + 5 + 5
- 6t = 28
t = 28 / - 6
Question :-
Solve the following equation ,and check your result in each case .
Explanation :-
(1) 3x -5 = 0
→ 3x = 5
→ x = 5/3
check result .
→ 3 ×5/3 -5 = 0
→ 5 - 5 = 0
→ 0 = 0
verified.
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(2) 8x -3 = 9 - 2x
→ 8x +2x = 9 +3
→ 10x = 12
.→ x = 6/5
check result
→ 8 ×6/5 - 3 = 9 - 2× 6/5
→48/5 -3 = 9 - 12/5
→ (48 -15)/5 = (45-12)/5
→ 13 = 13
verified.
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(3) 7 - 5x = 5 - 7x
→ 7x - 5x = 5 -7
→2x = -2
→ x = -1
check result .
→ 7 - 5(-1) = 5 - 7(-1)
→ 7 +5 = 5+7
→ 12 = 12
verified.
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(4) 3+ 2x=1-x
→ 2x +x = 1-3
→3x = -2
→ x = -2/3
check result
→ 3+2(-2/3) = 1 -(-2/3)
→ 3-4/3 = 1+2/3
→ 5/3 = 5/3
verified.
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