1. State which of the following are equations with a variable), Give rason for you answer Identify the variable from the equations with a variable (a) 177 (b) (1-7) (d) (7 * 3) - 19=8(e) 5x4-8-22 (0.-2=0 (g
) 2 < 30 (h) 2+1=11 (07 (115)-(124) 30 ss (1) 7=(11 x 2) +P () 20 = 5v (m) 3+ 12 > 24 (n) 20-10-5) = 3 x 5 (0) 7-15
Answers
Step-by-step explanation:
(a) 17 = x + 7 is an algebraic equation with variable x
(b) (t – 7) > 5 is an inequality and not an equation as it does not have = between the expressions on LHS and RHS
(c) 4 / 2 = 2 is a numerical equation which does not have a variable
(d) (7 × 3) – 19 = 8 is a numerical equation which does not have a variable
(e) 5 × 4 – 8 = 2x is an algebraic equation with variable x
(f) x – 2 = 0 is an algebraic equation with variable x
(g) 2m < 30 is an inequality and not an equation as it does not have = between the expressions on LHS and RHS
(h) 2n + 1 = 11 is an algebraic equation with variable n
(i) 7 = (11 × 5) – (12 × 4) is a numerical equation which does not have a variable
(j) 7 = (11 × 2) + p is an algebraic equation with variable p
(k) 20 = 5y is an algebraic equation with variable y
(l) 3q / 2 < 5 is an inequality and not an equation as it does not have = between the expressions on LHS and RHS
(m) z + 12 > 24 is an inequality and not an equation as it does not have = between the expressions on LHS and RHS
(n) 20 - (10 – 5) = 3 × 5 is a numerical equation which does not have any variable