30-2.5x = 10

30-2.5x = 10

30-2.5X=10
2.5X=30-10
2.5X=20
X=8

Solve the equation, the square of X - 5x + 2 = 0, give wealth

X^2-5X+2=0
X^2-5X+2.5^2-2.5^2+2=0
(X-2.5)^2-6.25+2=0
(X-2.5)^2-4.25=0
(X-2.5)^2=4.25
X = root 4.25 + 2.5
Or x = - radical 4.25 + 2.5

How to solve the equation: x-0.5x = 20.9

x-0.5x=20.9
(1-0.5)x=20.9
0.5x=20.9
x=20.9÷0.5
x=41.8

4X + 3 = 5x + 1 to solve the equation

3-1=5x-4x x=2

Solving equation 5x-1.5 = 2.5
I forgot whether it was 5 divided by 4 or 4 divided by 5

5x=2.5+1.5=4,x=0.8

How much is 2 and half + 1.6? How much is 5 and five seventh + 2 and one seventh? How much is 5.2 + one fifth?

What is 2 and a half plus 1.6?
2 and 1 / 2 + 1.6
=2.2+1.6
=3.8
What is 5 and 5 / 7 + 2 and 1 / 7?
5 and 5 / 7 + 2 and 1 / 7
=5+2+5/7+1/7
=7 and 6 / 7
How much is another fifth of 5.2 +?
5.2+1.2
=6.4 I hope my answer will be helpful to you. If you want to ask questions like this, try more and you will get it next time!
I wish you academic progress!

Solving equation 1.5 + seven eighths x minus 0.25x equals twenty-three tenths

1.5 + seven eighths x minus 0.25x equals twenty-three tenths
1.5 + 8 / 3x = 2.3
3x of 8 = 0.8
X = 0.8 △ 3 / 8
X = 10 / 3
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There are 1428 tennis balls in total, and each of them is loaded with one tube. After loading, there are three left. How many tubes have been loaded?

Let x tube be installed, 1428-5x = 3, & nbsp; & nbsp; & nbsp; 5x = 1428-3, & nbsp; & nbsp; & nbsp; & nbsp; X = 285; a: 285 tubes are installed

17 / 6 (x + 24) = 3 (x-24),

17/6(x+24)=3(x-24)
17(x+24)=18(x-24)
17x+17×24=18x－18×24
x=24×35
x=840

4.5 plus 3.6 x equals 25.2. Solve the equation

85