Question

me ajudem na 4 e 5 por favor

Answer 1

4) 2x - (x - 1) = 7

x=6

5) – (0 + 40 + 0) –15 + 0 – 4 = – 40 – 19 = – 59

Answer 2

4)
x * 2 - 1* (x-1)=7
2x-(x-1)=7
2x-x+1=7
x=7-1
x=6


5)

- 40 - 15 - 4=>
- 55 - 4 =>
- 59