Answer: x= -4,-5
Step-by-step explanation:
Your molarity would be 0.975 M HCl because it’s moles of solute divided by liters of solvent
Step-by-step explanation:
4(x – 3) = 20
1st Step: 4x – 12 = 20
Reason: Distribute
2nd Step: 4x – 12 + 12 = 20 + 12
» 4x = 32
Reason: Add 12 to both sides
3rd Step: 4x ÷ 4 = 32 ÷ 4
» x = 8
Reason: Divide both sides by 4
Step-by-step explanation:
let the 1st number be x
given,
2nd number = 10 less than 1st number = x - 10
3rd number = 2 times the 1st number = 2x
their sum = 74
a/q,
x + x - 10 + 2x = 74
after solving the equation,
→ x + x - 10 + 2x = 74
→ 4x - 10 = 74
→ 4x = 74 + 10 = 84
→ 4x = 84
→ x = 84/4 = 21
therefore,
1st number = x = 21
2nd number = 10 - x = 21 - 10 = 11
3rd number = 2x = 2 × 21 = 42
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Answer:
48
Step-by-step explanation: