first off the answer to the problem is 3x^7 Multiply 3 3 by −7 - 7 to get −21 - 21 . Move all terms containing x x to the left side of the equation. Since 3x 3 x contains the variable to solve for, move it to the left side of the equation by subtracting 3x 3 x from both sides. Subtract 3x 3 x from 3x 3 xto get 0 0
hope it helped =)