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sineoko [7]
3 years ago
15

4+3x=25

gn="absmiddle" class="latex-formula">
Mathematics
1 answer:
Black_prince [1.1K]3 years ago
4 0
x=7 

Solve for x:
3 x + 4 = 25

Subtract 4 from both sides:
3 x + (4 - 4) = 25 - 4

4 - 4 = 0:
3 x = 25 - 4

25 - 4 = 21:
3 x = 21

Divide both sides of 3 x = 21 by 3:
(3 x)/3 = 21/3

3/3 = 1:
x = 21/3

The gcd of 21 and 3 is 3, so 21/3 = (3×7)/(3×1) = 3/3×7 = 7:
Answer: x = 7
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