Question

7 x - 20 ÷ 5 = 3x + 15 × 2

Answer 1

7x-4=3x+30
4x=34
x=8,5

Answer 2

Let's solve the equation step by step:

1. First, perform the operations on each side of the equation.
2. Combine like terms.
3. Isolate the variable, x, on one side of the equation.

Starting with the given equation:

7x - 20 ÷ 5 = 3x + 15 × 2

Step 1: Divide 20 by 5 on the left side: 7x - 4 = 3x + 15 × 2

Multiply 15 by 2 on the right side: 7x - 4 = 3x + 30

Step 2: Now, let's move all the terms with x to one side and the constant terms to the other side.

Subtract 3x from both sides: 7x - 3x - 4 = 3x - 3x + 30

Simplify: 4x - 4 = 30

Step 3: Next, isolate x by getting rid of the constant term on the left side. To do this, add 4 to both sides of the equation:

4x - 4 + 4 = 30 + 4

Simplify: 4x = 34

Finally, to solve for x, divide both sides by 4:

x = 34 ÷ 4

Simplify: x = 8.5

So, the solution to the equation is x = 8.5.