Solve the system by substitution
y=3x+3
y=2x

{y=3x+3
{y=2x

⇒3x+3=2x    /-2x

    x+3=0     /-3

x=-3

y=2x= 2* (-3)=-6

y=-6

Solution: (-3; -6)

x= 149. 24+7=31. 180-31=149

your welcome

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