Question

Решите уравнение: 1)-50(-3х+10)=-200 2)-62(2у+22)=-1860 3)-11х+52=41х 4)14(3у-5)=19у-1 5)11(8+9х)=88+х 6)100х+77=100-(х+23) 7)38-5у=34-4у 8)26-4х=28-2х 9)10+9у=26+у 10)-20(-10у+4)=120 11)-15(-9-2х)=15 Помогите пожалуйста решить ОЧЕНЬ СРОЧНО ПОЖАЛУЙСТА!!!!

Answer 1

1) -50(-3x+10) = -200 Expanding the brackets: 150x - 500 = -200 Adding 500 to both sides: 150x = 300 Dividing both sides by 150: x = 2

2) -62(2y+22) = -1860 Expanding the brackets: -124y - 1364 = -1860 Adding 1364 to both sides: -124y = -496 Dividing both sides by -124: y = 4

3) -11x + 52 = 41x Adding 11x to both sides: 52 = 52x Dividing both sides by 52: x = 1

4) 14(3y-5) = 19y - 1 Expanding the brackets: 42y - 70 = 19y - 1 Subtracting 19y from both sides: 23y - 70 = -1 Adding 70 to both sides: 23y = 69 Dividing both sides by 23: y = 3

5) 11(8+9x) = 88 + x Expanding the brackets: 88 + 99x = 88 + x Subtracting x from both sides: 99x - x = 0 Combining like terms: 98x = 0 Dividing both sides by 98: x = 0

6) 100x + 77 = 100 - (x+23) Simplifying the right side: 100x + 77 = 100 - x - 23 Combining like terms on the right side: 100x + 77 = 77 - x Adding x to both sides: 101x + 77 = 77 Subtracting 77 from both sides: 101x = 0 Dividing both sides by 101: x = 0

7) 38 - 5y = 34 - 4y Adding 5y to both sides: 38 = 34 + y Subtracting 34 from both sides: 4 = y

8) 26 - 4x = 28 - 2x Adding 4x to both sides: 26 = 28 + 2x - 4x Simplifying: 26 = 28 - 2x Subtracting 28 from both sides: -2 = -2x Dividing both sides by -2: x = 1

9) 10 + 9y = 26 + y Subtracting y from both sides: 10 + 8y = 26 Subtracting 10 from both sides: 8y = 16 Dividing both sides by 8: y = 2

10) -20(-10y + 4) = 120 Expanding the brackets: 200y - 80 = 120 Adding 80 to both sides: 200y = 200 Dividing both sides by 200: y = 1

11) -15(-9-2x) = 15 Expanding the brackets: 135 + 30x = 15 Subtracting 135 from both sides: 30x = -120 Dividing both sides by 30: x = -4