Question

Check if -2 is the solution of equation 2 – x = 4x + 3​

Answer 1

7x the answer i think

Explanation:

Answer 2

`\boxed {\boxed {\sf -2 \ is \ not \ a \ solution}}`

Explanation:

We are asked to check is -2 is the solution of the following equation.

`2-x= 4x+3`

We must substitute -2 in for x and solve both sides of the equation. If the two sides are equal, then -2 is the solution.

`2- (-2) = 4(-2)+3`

Solve both sides of the equation according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Let's start with the left side.

`2+2= 4(-2)+3 \\`

`4= 4(-2)+3`

Now solve the right side. Remember to multiply first.

`4= -8+3`

`4= -5`

`4\\eq -5`

4 is not equal to -5, so -2 is not the solution for this equation.