Question

Exercice 3-(4 pts): Enchaînements d'opérations, simplification de fractions et nombres relatifs. Recopier chaque expression, calculer en rédigeant en colonne, étape par étape. Pour les expressions A, B et C, donnez le résultat sous la forme d'une fraction irréductible. A=4+3x6 48

D = (7 + 3) - 9×2
B = 4x3+6 48 (4 + 3) x 6 ÷ 48
E = (-5+3-4)-(-4+6) × 2
C= (4+3)×6 ÷ 48

Answer 1

Explanation:

A = 4 + 3x6/48

A = 4 + 18/48

A = 4 + 3/8

A = (4*8+3)/8

A = 35/8

D = (7+3)-9x2

D = 10-18

D = -8

B = (4x3+6)/48

B = (12+6)/48

B = 18/48

B = 3/8

(4+3)x6÷48

7x6÷48

42÷48

7/8

E = (-5+3-4)-(-4+6)x2

E = (-6)-(-8)

E = 2

Therefore, the results are:

A = 35/8

D = -8

B = 3/8

E = 2

Answer 2

The system of equations is now solved:

A= 35/8

D=−8

B= 97/8

​E=−10

C= 7/8

Let's solve the following expressions, writing the steps in a column. For expressions A, B, and C, give the answer in the form of an irreducible fraction:

A=4+ 3.6/48

D=(7+3)−9⋅2

B=4⋅3+ 6/48

E=(−5+3−4)−(−4+6)⋅2

C=(4+3)⋅ 6/48

Steps to solve:

1. Rearrange terms in standard form:

A= 35/8

D=−8

B= 97/8

E=−10

C= 7/8

​2. Multiply both sides of equation A by 8:

8A=35

3. Multiply both sides of equation B by 8:

8B=97

4. The system of equations is now solved:

A= 35/8

D=−8

B= 97/8

​E=−10

C= 7/8

Complete question below:

Solve the following expressions, writing the steps in a column. For expressions A, B, and C, give the answer in the form of an irreducible fraction.

A = 4 + 3 * 6 / 48

D = (7 + 3) - 9 * 2

B = 4 * 3 + 6 / 48

E = (-5 + 3 - 4) - (-4 + 6) * 2

C = (4 + 3) * 6 / 48