Question

Помогите решить 1) 6×+(3×-2)=14 2) 8y-(7y-142)=51 3) (6×+1)-(3-2×)=14 4) (6-2×)+4=-5×-3 5) (2×+3)-(5×+11)=7+(13-2×)

Answer 1

6x+3x-2-14=0
9x-16=0
9×=16
×=16:9

Answer 2

1. 6× + (3× - 2) = 14 To solve for x, we first simplify the expression inside the parentheses: 3× - 2 = 3x - 2 Then we can rewrite the equation as: 6x + 3x - 2 = 14 Combining like terms, we get: 9x - 2 = 14 Adding 2 to both sides, we get: 9x = 16 Finally, dividing both sides by 9, we get: x = 16/9

   So the solution is x = 16/9.

2. 8y - (7y - 142) = 51 To solve for y, we first simplify the expression inside the parentheses: 7y - 142 = 7y - 142 Then we can rewrite the equation as: 8y - 7y + 142 = 51 Combining like terms, we get: y + 142 = 51 Subtracting 142 from both sides, we get: y = -91

   So the solution is y = -91.

3. (6× + 1) - (3 - 2×) = 14 To solve for x, we first simplify the expression inside the parentheses: -3 + 2x = 2x - 3 Then we can rewrite the equation as: 6x + 1 - 2x + 3 = 14 Combining like terms, we get: 4x + 4 = 14 Subtracting 4 from both sides, we get: 4x = 10 Finally, dividing both sides by 4, we get: x = 2.5

   So the solution is x = 2.5.

4. (6 - 2×) + 4 = -5× - 3 To solve for x, we first simplify the expression on the left side: 6 - 2x + 4 = 10 - 2x Then we can rewrite the equation as: 10 - 2x = -5x - 3 Adding 2x to both sides, we get: 10 = -3x - 3 Adding 3 to both sides, we get: 13 = -3x Finally, dividing both sides by -3, we get: x = -13/3

   So the solution is x = -13/3.

5. (2× + 3) - (5× + 11) = 7 + (13 - 2×) To solve for x, we first simplify the expression on the left side: 2x + 3 - 5x - 11 = 7 + 13 - 2x Combining like terms, we get: -3x - 8 = 20 - 2x Subtracting 20 from both sides, we get: -3x - 28 = -2x Adding 2x to both sides, we get: -x - 28 = 0 Adding x to both sides, we get: -28 = x

   So the solution is x = -28.