Question

4. Реши уравнения. 35 + 23 + x = 10042 70 - a = 8 + 9 + 2 - а + (45 - 30) = 75 - 20 - (23 +17) = 60 - (30 – 15) +y= 80 x+12=50-(15+5)​

Answer 1

будет 0 88888888888888888888888888888888888888888

Answer 2

1) 35 + 23 + x = 100 Combine like terms: 58 + x = 100 Subtract 58 from both sides: x = 42

2) 70 - a = 8 Subtract 70 from both sides: -a = -62 Divide by -1: a = 62

3) 9 + 2 - a = (45 - 30) Combine like terms: 11 - a = 15 Subtract 11 from both sides: -a = 4 Divide by -1: a = -4

4) 75 - 20 - (23 + 17) = 60 - (30 - 15) Combine like terms: 55 - 40 = 60 - 15 Simplify: 15 = 45 (This equation is not possible as it is contradictory)

5) y = 80 This equation is already solved for y.

6) x + 12 = 50 - (15 + 5) Combine like terms: x + 12 = 50 - 20 Simplify: x + 12 = 30 Subtract 12 from both sides: x = 18

So the solutions to the given equations are: 1) x = 42 2) a = 62 3) a = -4 4) This equation has no solution 5) y = 80 6) x = 18