a. F = 3 ( 2x + 9 ) + 4 ( 7 - x ) - 12
F = 3 * 2x + 3 * 9 + 4 * 7 - 4x - 12
F = 6x + 27 + 28 - 4x - 12
F = 2x + 67
b. x = 0
F = 2 * 0 + 67
F = 0 + 67
F = 67
x = 2
F = 2 * 2 + 67
F = 4 + 67
F = 71
x = 0.1
F = 2x +67
F = 2 * 0.1 +67
F = 0.2 + 67
F = 67.2
J'espère t'avoir aidé ! :)
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a. F = 3 ( 2x + 9 ) + 4 ( 7 - x ) - 12
F = 3 * 2x + 3 * 9 + 4 * 7 - 4x - 12
F = 6x + 27 + 28 - 4x - 12
F = 2x + 67
b. x = 0
F = 2x + 67
F = 2 * 0 + 67
F = 0 + 67
F = 67
x = 2
F = 2x + 67
F = 2 * 2 + 67
F = 4 + 67
F = 71
x = 0.1
F = 2x +67
F = 2 * 0.1 +67
F = 0.2 + 67
F = 67.2
J'espère t'avoir aidé ! :)