Question

БЫСТРО 30 БАЛЛОВ 1)-17x=-34 2) 7x+70=03)2x-15=3-3x 4)5-(7x-17)=5x+10 5)6(x-3)=2(x+2)+2​

Answer 1

Ответ:

1) х = 2

2) х = -10

3) х = 2,4

вот только три

Answer 2

1) -17x = -34 To solve this equation, we can isolate x by dividing both sides of the equation by -17: -17x / -17 = -34 / -17 x = 2

2) 7x + 70 = 0 To solve this equation, we can start by subtracting 70 from both sides: 7x + 70 - 70 = 0 - 70 7x = -70 Next, we can divide both sides of the equation by 7 to isolate x: 7x / 7 = -70 / 7 x = -10

3) 2x - 15 = 3 - 3x + 4 First, let's combine like terms on both sides of the equation: 2x + 3x = 3 + 4 + 15 5x = 22 Next, divide both sides of the equation by 5 to solve for x: 5x / 5 = 22 / 5 x = 4.4

4) 5 - (7x - 17) = 5x + 10 + 5 Let's simplify both sides of the equation step by step: 5 - 7x + 17 = 5x + 10 + 5 22 - 7x = 5x + 15 Now, let's isolate the variable terms on one side and the constant terms on the other side: -7x - 5x = 15 - 22 -12x = -7 Divide both sides of the equation by -12 to solve for x: x = -7 / -12 x = 7/12

5) 6(x - 3) = 2(x + 2) + 2 Let's distribute on both sides of the equation: 6x - 18 = 2x + 4 + 2 Combine like terms on both sides: 6x - 2x = 4 + 2 + 18 4x = 24 Divide both sides of the equation by 4 to solve for x: x = 24 / 4 x = 6

Therefore, the solutions to the given equations are: 1) x = 2 2) x = -10 3) x = 4.4 4) x = 7/12 5) x = 6