Basic Simplification Quiz Set 006

x - 4 = +54, so x = 54 + 4 = 58 is one solution, and we can also have x - 4 = -54, which gives x = 4 - 54 = -50. The sum is 58 + (-50) = 8.

We have by bodmas 391 + 196 - 1 × 579 ÷ 193 = 391 + 196 - (1 × (579 ÷ 193)) = (391 + 196) - (1 × (3)) = (391 + 196) - 3 = 587 - 3 = 584.

Let the number of blue marbles at present be x. The number of pink marbles at present are 5x. If we put back 9 blue marbles, the equation becomes x + 9 = 2 × 5x, which gives 9x = 9, or x = 1 marbles. Note: some information in the question is never used, it is given for confusing the candidate.

Let the number of blue marbles at present be x. The number of pink marbles at present are 5x. If we put back 45 blue marbles, the equation becomes x + 45 = 2 × 5x, which gives 9x = 45, or x = 5 marbles. Note: some information in the question is never used, it is given for confusing the candidate.

x - 5 = +81, so x = 81 + 5 = 86 is one solution, and we can also have x - 5 = -81, which gives x = 5 - 81 = -76. The sum is 86 + (-76) = 10.