Answer:
-1
Step-by-step explanation:
Add '-7x' to each side of the equation.
4 + 3x + -7x = 8 + 7x + -7x
Combine like terms: 3x + -7x = -4x
4 + -4x = 8 + 7x + -7x
Combine like terms: 7x + -7x = 0
4 + -4x = 8 + 0
4 + -4x = 8
Add '-4' to each side of the equation.
4 + -4 + -4x = 8 + -4
Combine like terms: 4 + -4 = 0
0 + -4x = 8 + -4
-4x = 8 + -4
Combine like terms: 8 + -4 = 4
-4x = 4
Divide each side by '-4'.
x = -1
Simplifying
x = -1
Subtract 3x from 5x getting 2x so your new equation is: 2x-1/4=-5/4 then you add 1/4 to -5/4 getting : 2x=-1 the you divide both sides by 2 so x=-1/2<span>
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120 is the answer to this equation.