Question 11 MarkIf x ∈ W, then the solution set of x < 2 is ………..AnswerIf x ∈ W, then the solution set of x < 2 is x = {0, 1}.View full question & answer→
Question 21 MarkIf 63 exceed another number by 21, then the other number is …………AnswerIf 63 exceed another number by 21,then the other number is 42.Let number = x then other number = 63 – 21 = 42View full question & answer→
Question 31 MarkIf a number is increased by 15, it becomes 50. Then the number is ……..AnswerIf a number is increased by 15, it becomes 50.Then the number is 35.Let number = x, then number is 35x + 15 = 50⇒ x = 50 – 15 = 35View full question & answer→
Question 41 Mark$5x + ………. = 13$ has the solution $-3.$Answer$5 x+28=13$ has the solution $-3.$ $5(-3)+\ldots \ldots \ldots .=13$ $-15+\ldots \ldots \ldots . .=13$ Required number $=13+15=28$View full question & answer→
Question 51 MarkIn integers, 3x – 1 = 4 has …………. solution.AnswerIn integers, $3 x-1=4$$\Rightarrow 3 x =4+1$$\Rightarrow 3 x =5$ has no solution.$\Rightarrow x=\frac{5}{3}$ which is not an integer.View full question & answer→
Question 61 MarkIn natural numbers, 4x + 5 = -7 has ……….. solution.AnswerIn natural numbers, 4x + 5 = -7 has no solution.4x = -7 – 5⇒ 4x = -12⇒ x = -3Which is not natural number.View full question & answer→
Question 71 MarkIf 3x + 7 = 1, then the value of 5x + 13 is ………..AnswerIf 3x + 7 = 1⇒ 3x= 1 -2 -6⇒ 3x = -6⇒ x = -2Then the value of 5x + 12 is 3.View full question & answer→
Question 81 Mark…………. is a solution of the equation 4x + 9 = 5.Answer$-1$ is a solution of the equation4x + 9 = 5⇒ 4x = 5 – 9 = -4⇒ x = -1View full question & answer→
Question 91 MarkThe equation for the statement ‘5 less than thrice a number x is 7’ is ……….AnswerThe equation for the statement ‘5 less than thrice a number x is 7’ is 3x – 5 = 7.View full question & answer→
Question 101 MarkThe number 4 is the ………. of the equation 2y – 5 = 3.AnswerThe number 4 is the solution of the equation 2y – 5 = 3.⇒ 2y = 3 + 5 = 8⇒ y = 4View full question & answer→
Question 111 MarkIf five times a number is 50, then the number is ……….AnswerIf five times a number is 50, then the number is 10.View full question & answer→
Question 121 MarkA linear equation in one variable cannot have more than ………… solution.AnswerA linear equation in one variable cannot have more than one solution.View full question & answer→