Explications étape par étape:
- 19 + 1× 3 = 19 + 3 = 22
- (-2) + (-5) + (+1)+ (-3) + (+2) = -7 + 1 - 3 + 2 = -6 - 3 + 2 = -9 + 2 = -7
- ( - 6 + 10 ) = ( + 6 - 10) = -4
- 6 (x + 5) = 6 (4 + 5) = 6 × 9 = 54
- 14,5 - 21 - 35,8 + 16,3 = -6,5 - 35,8 + 16,3 = -42,3 + 16,3 = -26
- (-2) × (-4) × (-2) × (-3) × (-2) = 8(-2)(-3)(-2) = -16(-3)(-2) = 48(-2) = -96
- (-7 - 2) ÷ (5 - 8) = -9/5-8 = -9/-3 = 3
- -3 - 5 × 3 + 4 = -3 - 15 + 4 = -18 + 4 = -14
- [tex]3-(7-(-1) \times 4-9))[/tex]=
[tex]3-\left(7-\left(-4\right)-9\right) [/tex]
=
[tex]3-\left(7+4-9\right) [/tex]
=
[tex]3-\left(11-9\right) [/tex]
=
[tex]3-2 [/tex]
=
1
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