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Question 4
Rearrange the following formulae to make the letter shown in the square brackets the subject.
| (a) | \( ax = bx - c \) | \( [x]\) | (b) | \( y = px - qx \) | \( [x]\) | (c) | \( 3x - a = bx + c \) | \( [x]\) |
| (d) | \( a(x - 3) = bx - a \) | \( [x]\) | (e) | \( p(x + 2) = q(x - 5) \) | \( [x]\) | (f) | \( \frac{a + x}{b - x} = 2 \) | \( [x]\) |
| (g) | \( 3(x + b) = y(x - c) + dx \) | \( [x]\) | (h) | \( \frac{x}{c} - cx = 2x \) | \( [x]\) | (i) | \( a(x + 2) - bx = 5(x + 3) \) | \( [x]\) |
| (j) | \( 5x - a(x + 4) = b(x - d) \) | \( [x]\) | (k) | \( a(x + b) - c(x + d) = 2 \) | \( [x]\) | (l) | \( \frac {a - 2}{b}= \frac {cx}{x + 2} \) | \( [x]\) |