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Question
Solve the following equation: 2(z - 5) +3 (z + 2) - (3 - 5z) =10
Solution
2(z - 5) +3 (z + 2) - (3 - 5z) =10
⇒ 2z - 10 + 3z + 6 - 3 + 5z = 10
⇒ 10z - 7 = 10
⇒ 10z - 7 + 7 = 10 + 7 ...(Adding 7 to both sides)
⇒ 10z = 17
⇒ `"10z"/10 = 17/10` ..(Dividing by 7)
⇒ z = `17/10 = 1 7/10`
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