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mr. diaz classwork math concepts date answer all questions. show all wo…

Question

mr. diaz classwork math concepts date answer all questions. show all work hw 37 1. find the solution of each equation. (1) $2 = x - 4$ (2) $2y = -10$ 2. use the distributive property and simplify each expression. a. $5(3y - 1)$ b. $2(x - 7) - 2(3 - 4x)$ 3. find each sum or difference. a. $(2a^2 - 4a - 1) - (a^2 - 7a - 4)$ b. $(2y^2 + 3y + 1) + (y^2 + 3y - 4)$

Explanation:

Response
Question 1 (1) : \( 2 = x - 4 \)

Step 1: Isoler \( x \)

Pour isoler \( x \), on ajoute 4 aux deux côtés de l'équation :
\( 2 + 4 = x - 4 + 4 \)

Step 2: Calculer

Simplifier les deux côtés :
\( 6 = x \)

Question 1 (2) : \( 2y = -10 \)

Step 1: Isoler \( y \)

Diviser les deux côtés par 2 :
\( \frac{2y}{2} = \frac{-10}{2} \)

Step 2: Calculer

Simplifier :
\( y = -5 \)

Question 2 (a) : \( 5(3y - 1) \)

Step 1: Appliquer la propriété distributive

Multiplier 5 par chaque terme à l'intérieur des parenthèses :
\( 5 \times 3y - 5 \times 1 \)

Step 2: Calculer

Simplifier :
\( 15y - 5 \)

Question 2 (b) : \( 2(x - 7) - 2(3 - 4x) \)

Answer:

s:

  1. (1) \( \boldsymbol{x = 6} \)

(2) \( \boldsymbol{y = -5} \)

  1. (a) \( \boldsymbol{15y - 5} \)

(b) \( \boldsymbol{10x - 20} \)

  1. (a) \( \boldsymbol{a^2 + 3a + 3} \)

(b) \( \boldsymbol{3y^2 + 6y - 3} \)