Question

(8x+91):7=21 помогите решить уравнения 5 класса

Answer 1

8X + 91 = 21 * 7

8X = 147 - 91

8X = 56

X = 56 / 8

X = 7

Answer 2

Solving the Equation (8x + 91) ÷ 7 = 21

To solve the equation (8x + 91) ÷ 7 = 21, we can follow these steps:

1. Isolate the Variable: First, we need to isolate the variable (x) by performing the inverse operation of the division and addition that are currently being applied to it.

2. Simplify the Equation: We'll simplify the equation step by step to solve for x.

Step-by-Step Solution

1. Isolate the Variable: - The equation is (8x + 91) ÷ 7 = 21. - To isolate x, we'll first multiply both sides of the equation by 7 to get rid of the division.

2. Simplify the Equation: - After multiplying both sides by 7, the equation becomes 8x + 91 = 147. - Next, we'll subtract 91 from both sides to isolate the term with x. - This gives us 8x = 147 - 91.

3. Solve for x: - Now, we'll perform the subtraction to find the value of x.

Final Result

The value of x can be calculated by solving the equation 8x = 56.

x = 56 / 8

Let's calculate the value of x.