(1/3+1/2)*х=3,75 , (3/5-0,25)*x=4,9

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вопрос

To solve the first equation, we need to find the value of x.

First, we simplify the equation:

(1/3 + 1/2) x = 3.75
(2/6 + 3/6) x = 3.75
5/6 * x = 3.75

Now, we can solve for x by dividing both sides by 5/6:

x = 3.75 / 5/6
x = 3.75 * 6/5
x = 4.5

Therefore, x = 4.5

Now, let's solve the second equation:

(3/5 - 0.25) x = 4.9
(3/5 - 1/4) x = 4.9
(12/20 - 5/20) x = 4.9
7/20 x = 4.9

Again, we solve for x by dividing both sides by 7/20:

x = 4.9 / 7/20
x = 4.9 * 20/7
x = 14

Therefore, x = 14