5x+15=7x-3
a) 100
b)60
c)55
d)65

are those the only options given? cause I think x=9.

Step-by-step explanation:

Step 1: Subtract 7x from both sides.

5x+15−7x=7x−3−7x

−2x+15=−3

Step 2: Subtract 15 from both sides.

−2x+15−15=−3−15

−2x=−18

Step 3: Divide both sides by -2.

−2x−2=−18−2

x=9

x=9

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.