Solve for x: 3 x = 2 7
To solve for the missing value in this ratio problem, it is a two-step process. First, cross-multiply: 3 x = 2 7 3 × 7 = 2 × x 21 = 2x From here, to isolate x take the opposite operation. In other words divide each side by two. 21 2 = 2 x 2 21 2 = x
To solve for the missing value in this ratio problem, it is a two-step process.
First, cross-multiply:
3 x = 2 7
3 × 7 = 2 × x
21 = 2x
From here, to isolate x take the opposite operation. In other words divide each side by two.
21 2 = 2 x 2 21 2 = x
86 MCQ for effective preparation of the test of Arithmetic of Arithmetic section.
Read the MCQ statement: , keenly and apply the method you have learn through the video lessons for Arithmetic to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 67-1445.