Question

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

Answer 1

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

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

Answer:

x=9