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Standard VII
Maths
Solution of an Equation using Trial and Error Method
Question
$$x = -1$$ is a solution of the equation
A
$$2(x - 2) + 6 =0$$
B
$$x - 5 =6$$
C
$$2x + 5 = 7$$
D
$$3x + 5 =4$$
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Solution
Verified by Toppr
Correct option is C. $$2(x - 2) + 6 =0$$
$$x = -1$$
$$2(x-2) + 6 =0$$
$$\implies\, 2(-1 -2) + 6 =0$$
$$\implies\, 2 \times (-3) + 6= 0$$
$$\implies\, -6 + 6 =0$$
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