Question

7(4 – а) - 3( -3а + 1) – 25 = 2а

Answer 1

Ответ:

7(4-a)-3(-3a+1)-25=28-7a+9a-3-25=2a

Объяснение:

Answer 2

To solve the equation, follow these steps:

1. Distribute the constants and variables within the parentheses.
2. Combine like terms on both sides of the equation.
3. Isolate the variable (a) on one side.
4. Solve for the variable.

Let's go through these steps one by one:

Given equation: 7(4 - a) - 3(-3a + 1) - 25 = 2a

Step 1: Distribute the constants and variables within the parentheses:

7 * 4 - 7 * a - 3 * -3a + 3 * 1 - 25 = 2a

28 - 7a + 9a + 3 - 25 = 2a

Step 2: Combine like terms on both sides of the equation:

28 + 2a - 25 = 2a (Combine the 'a' terms) 3 + 2a - 25 = 2a

2a - 22 = 2a (Subtract 25 from both sides)

Step 3: Isolate the variable (a) on one side:

2a - 2a = 22 (Subtract 2a from both sides)

0 = 22

Since the equation is contradictory (0 cannot equal 22), there is no solution for 'a' that satisfies the original equation. It seems there might be a mistake in the equation or the provided information. Double-check the equation or let me know if there's anything else you need assistance with!