Question

In equation 3x + 4 = 10,  by transposing the variable on RHS we get ________

(a) -4 = 10 – 3x

(b) 4 = 3x + 10

(c) 4 = -3x + 10

(d) -4 = – 3x – 10

I had been asked this question in exam.

Asked question is from Solving Linear Equations with Variables on One Side and Number on the Other in section Linear Equations in One Variable of Mathematics – Class 8

Answer 1

The correct answer is (c) 4 = -3x + 10

To explain I would say: While shifting the variable from LHS to RHS the sign changes from positive to negative and vice versa. Here, the given equation is 3x + 4 = 10.