The equation 15 + 10x = 7.5x + 25 represents real-world problem. Which problem best corresponds to the equation?

Step-by-step explanation:

Let's solve your equation step-by-step.

15+10x=75x+25

Step 1: Simplify both sides of the equation.

10x+15=75x+25

Step 2: Subtract 75x from both sides.

10x+15−75x=75x+25−75x

−65x+15=25

Step 3: Subtract 15 from both sides.

−65x+15−15=25−15

−65x=10

Step 4: Divide both sides by -65.

−65x

−65

=

10

−65

x=

−2

13

x=

−2

13

i think c. but don't trust it.

step-by-step explanation:

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3