Question

Решите уравнения: 11х +8x = 45638x — 14х = 1608у+27y = 120414х – х = 28 — 1678а +7а + 15 = 420​

Answer 1

Ответ:

вроде бы решается так

Пошаговое объяснение:

11x+8x=456

19x=456

x=456÷19

x=24

38x-14x=1608

24x=1608

x=1608÷24

x=67

y+27y=1204

28y=1204

y=1204÷28

y=43

8a+7a+15=420

16a+15=420

16a=420÷15

16a=28

a=28÷16

a=1,75

Answer 2

1) 11x + 8x = 456 Simplify the equation: 19x = 456 Divide both sides by 19: x = 24

2) 14x - x = 28 Simplify the equation: 13x = 28 Divide both sides by 13: x = 2

3) 27y = 1204 Divide both sides by 27: y = 44.74 (approximately)

4) 1678a + 7a + 15 = 420 Simplify the equation: 1685a + 15 = 420 Subtract 15 from both sides: 1685a = 405 Divide both sides by 1685: a = 0.24 (approximately)