5x ^ 2 + 2x + 11 - 7 + 4x - 2x ^ 2

3x^2 +6x +4

Step-by-step explanation:

5x ^ 2 + 2x + 11 - 7 + 4x - 2x ^ 2

Combine like terms

5x ^ 2- 2x ^ 2 +    2x + 4x     + 11 - 7

3x^2 +6x +4

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

step-by-step explanation: