Length of rectangle: 4x+3 Perimeter of rectangle: 12x+10 Solving: 4x+3 + 4x+3= 8x+6 Now we have 8x+6 but, we still need our width. 12x+10 - 8x+6 = 4x+4 So now, since we only have 4x+4 left for our width, we are going to divide that by 2 because in a rectangle, there are 2 lengths and 2 widths. So in conclusion, the width of the rectangle is 2x+2 Glad I could help! And also, can you please mark my answer as the brainliest answer? Thanks.