1. a) The root of equation 9+6 3 = 20 is ________________.
b) 2 more than twice a number is 140.The number is______________.
c) Which of the following is the solution of the equation 3y-3 = - 12
i)15 ii) -5 iii) 3 iv) -3
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its a NCERT question u can evaluate it only by mathematical relationship,just try to see if u can equate them or not,if not ask an elder or teacher for help
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Hello there!!☺
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Answers:
b.) Refer the above attachment ☺
c.) (iv.) is correct option because,
3y-3 = -12
when we put y = -3
=3(-3) - 3 = -12
= -9 - 3 = -12
that gives, -12 = -12
Therefore , -3 is solution of the equation.☺
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.
Answers:
b.) Refer the above attachment ☺
c.) (iv.) is correct option because,
3y-3 = -12
when we put y = -3
=3(-3) - 3 = -12
= -9 - 3 = -12
that gives, -12 = -12
Therefore , -3 is solution of the equation.☺
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