1. Write ‘=’ or ‘≠’ in the given boxes. (a) 0.7 + 1.5
0.85
(b) 19 days
2 weeks 5 days
2. For each of the following equations, write ‘T’ for a linear algebraic term. Otherwise write ‘F’. 1 (a) — (b) 7xyz 4 p 3. For each of the following equations, write ‘T’ for a linear algebraic expressions. Otherwise write ‘F’. 1 (a) — (b) 2a – 4 + 7b r 4. For each of the following equations, write ‘T’ for a linear equation. Otherwise write ‘F’. (a) x2 + 1 = 0
(b) 3(2x – 5) = 3x
5. For each of the following equations, write ‘T’ for a linear equation in one unknown. Otherwise write ‘F’. (a) 2x + 3y = 5
(b) 7 = 3p2
6. 2x � 3
3x
The diagram shows a triangle and the measurements of sides, in cm. Form a linear equation if the perimeter of the triangle is 12 cm.
5x � 1
x+4 7. Write ——– 5 = 3 as a statement. 8. Determine if the value given in the bracket is a solution of the given linear equation. 3x (a) — (b) 3(x + 8) = 12 + x (x = –5) 2 = 7.5 (x = –5) 9. Use the trial and improvement method to solve 2x – 4 = –6.
