Question

Please help me now i will fail if no one helps me you will get 100 points too

Answer 1

Answer:

1. Change sides of „x” and fractions/numbers, without forgetting to change the sign:

0.75x + 3 = 0.25x + 5.25

0.75x - 0.25x = 5.25 - 3
0.5x = 2.25

Now we multiplicate by 2 to get answer:

0.5x = 2.25 |*2
x = 4.5

Proof:
0.75 * 4.5 + 3 = 0.25 * 4.5 + 5.25

3.375 + 3 = 1.125 + 5.25

6.375 = 6.375

And if both sides are the same, equation is correct.

Hope this helps!

Answer 2

x = 4.5

Explanation:

Definition:

Solving an equation: Finding the value of the variable that makes the equation true.

Solution:

We can solve the equation 0.75x+3= 0.25x +5.25 by subtracting 0.25x from both sides:

(0.75x+3) - 0.25x = (0.25x +5.25) - 0.25x

This simplifies to:

0.5x+3 = 5.25

Subtracting 3 from both sides, we get:

0.5x = 2.25

Dividing both sides by 0.5, we get:

`\sf (0.5x )/(0.5)= (2.25)/(0.5)`

x = 4.5

Therefore, the solution to the equation 0.75x+3= 0.25x +5.25 is x = 4.5.