100
4X - 32 + 5X + 50 = 180 gather like terms on the left 9X + 18 = 180 subtract 18 from each side 9X = 162 divide both sides by 9 X = 18 -------- check 4(18) - 32 + 5(18) + 50 = 180 72 - 32 + 90 + 50 = 180 40 + 90 + 50 = 180 180 = 180 checks
540 divided by 3 is not equal to 18 because the quotient of dividing 540 by 3 is 180, not 18. To find the quotient, you divide the dividend (540) by the divisor (3), and in this case, the result is 180.
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 and 180.
Assuming all measurements are in the same units, divide 120 / 18 to get the amount of tiles for the width, and 180 / 18 to get the number of tiles for the length. You may need to round up, or down, or break some tiles apart.
9x+18 = 180 9x = 180-18 9x = 162 x = 18