what’s the answer to 5+3x=7(x+3)

Answer:-4Step-by-step explanation:Simplifying5 + 3x = 7(x + 3)Reorder the terms:5 + 3x = 7(3 + x)5 + 3x = (3 * 7 + x * 7)5 + 3x = (21 + 7x)Solving5 + 3x = 21 + 7xSolving for variable 'x'.Move all terms containing x to the left, all other terms to the right.Add '-7x' to each side of the equation.5 + 3x + -7x = 21 + 7x + -7xCombine like terms: 3x + -7x = -4x5 + -4x = 21 + 7x + -7xCombine like terms: 7x + -7x = 05 + -4x = 21 + 05 + -4x = 21Add '-5' to each side of the equation.5 + -5 + -4x = 21 + -5Combine like terms: 5 + -5 = 00 + -4x = 21 + -5-4x = 21 + -5Combine like terms: 21 + -5 = 16-4x = 16Divide each side by '-4'.x = -4Simplifyingx = -4