2x + 3X - 5 = 4x + 20 Solve for x, X (opposite of x) and check

2x-3x-5-4x-20

#1

2x + 3X - 5 = 4x + 20 Solve for x, X (opposite of x) and check

Answer:

2x + 3X - 5 = 4x + 20
2x+3x-4x=20+5
x=25
225+325-4*25=25
25=25

x = 25, I dont understand what you mean by “X (opposite of x)”, but you can plug 25 in for x and it checks.
2(25)+3(25)-5 = 120
120 = 4(25)+20