Define the operation *, the rule is a * b = (a + b) / 2, find the solution of equation 3 * (x * 2) = 1

Define the operation *, the rule is a * b = (a + b) / 2, find the solution of equation 3 * (x * 2) = 1

Substitution rule:
[3+(x*2)]/2=1
Insert the rule again:
[3+(x+2)/2]/2=1
x=-4

If the operation a # B = (Ab-5) is defined, the solution of equation 4 # x = - 2 # 3 is obtained

4#x=-2#3
4x-5 = -2 *3 -5
4x = -6
x = -1.5

Define an operation rule "*" in the set of rational numbers: when a ≥ B, a * b = B ^ A; when a

When x ≥ 3
3*x=3^(x)=27
3^(x)=27
x=3
When x < 3
3*x=3x
3x=27
x-9

Is √ 1 + 2x + x ^ 2 multiplied by √ x ^ 2 + 7x-8 divided by X + 1 equal to?

√X^2+7X-8 (x>-1)
-√X^2+7X-8 (x

It is known that the solution X and letter coefficient a of the equation 1 ax / 2 plus 5 equals 7x minus 3 divided by 2 are positive integers, so we can find the value of A

(A+5)/2=(7X-3)/2,
A+5=7X-2
7X=A+7
X=A/7+1
A can take 7 digits
A 7 14 21 28...
X 2 3 4 5...
If there is no misunderstanding, the above answers are correct

7x equals 0 is the equation

It's an equation, a linear equation with one variable, with unknowns, it's an equation, x = 0

12 times 2 / 3 plus 7x is 12
solve equations

12x3 / 2 + 7x = 12
8+7x=12
7x=12-8
7x=4
x=4÷7
X = 4 / 7

What is 2 / 3 × 1 / 4 × 3? (8 / 9 + 4 / 27) × 27

7x + 8 - [8x - (8x * 1 / 4)] = 15. How to solve this equation

7x + 8 - [8x - (8x * 1 / 4)] = 15
7x+8-8x+2x=15
x=15-8
x=7

There are also 1.9x = 36 = 0.1X and x-0.88x = 6
Answer (1) a number is 22.5 times less than its 2.5 times. What is the number?
(set up equations and solve equations)

8 20 50