A number x is 4 less than three times another number y.if their sum is increased by 5 the results is 25 find the both number
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Answer:
x=14 and y= 6
Step-by-step explanation:
let the first number be x
let the second number be y
so according to the first condition
X = 3y - 4
according to the second condition
X + y + 5 = 25
(3y - 4) + y + 5 = 25
4y + 1 = 25
4y = 25 - 1
4y = 24
y = 24/4
y = 6
putting value of y in equation
x = 3 (6) - 4
x = 18 - 4
X = 14
answer
so the first number = 14 = x
the second number = 6 = y
Answered by
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- A number x is 4 less than three times another number y.if their sum is increased by 5 the results is 25 find the both number.
- A number x is 4 less than three times another number y
- their sum is increased by 5 the results is 25.
- find the both number ?
Let,
- The number be X and Y
So
→ x = 3y - 4
→ x - 3y = - 4 -----equ(¡)
And,
→ x + y + 5 = 25
→ x+ y = 25 - 5
→ x + y = 20 ------equ(¡¡)
† Solving both the equation †
→ x - 3y = -4
→
→ - 4y = -24
→ 4y = 24
→ y = 24/4
→ y = 6
____________________
★ Substituting y = 6 in equ(¡)
→ x - 3y = -4
→ x - 3(6) = -4
→ x - 18 = -4
→ x = -4 + 18
→ x = 14
- Both number are x = 14 & y = 6
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