Question

1) 4x + 5x + 4,7 = 16,4;3) (35,8 - x): 2,1 = 1,3;​

Answer 1

Ответ:

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Answer 2

To solve the equations, let's go step by step:

1. 4x + 5x + 4.7 = 16.4

Combining like terms, we have: 9x + 4.7 = 16.4

Subtracting 4.7 from both sides: 9x = 16.4 - 4.7 9x = 11.7

Dividing both sides by 9: x = 11.7 / 9 x ≈ 1.3

Therefore, the solution to the equation is x ≈ 1.3.

2. (35.8 - x) / 2.1 = 1.3

To isolate the variable, let's multiply both sides by 2.1: 35.8 - x = 2.1 * 1.3 35.8 - x = 2.73

To isolate x, subtract 35.8 from both sides: -x = 2.73 - 35.8 -x = -33.07

Multiplying both sides by -1 to solve for x: x = -1 * (-33.07) x ≈ 33.07

Therefore, the solution to the equation is x ≈ 33.07.