Question

a) x + 3 = - 12
d) 19 - (2 + x) = 5
b) x - 15 = - 51
e) (9 + x) - (18 - 31) = - 15
c) 43 - x = 20
f) - 14 - (34 - x) = 40

 

Answer 1

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Answer 2

a: x+3=-12

=>x=-12-3=-15

b: \(x-15=-51\)

=>\(x=-51+15\)

=>\(x=-36\)

d: \(19-\left(2+x\right)=5\)

=>\(2+x=19-5=14\)

=>\(x=14-2=12\)

e: \(\left(9+x\right)-\left(18-31\right)=-15\)

=>\(x+9-\left(-13\right)=-15\)

=>\(x+9+13=-15\)

=>\(x+22=-15\)

=>\(x=-15-22=-37\)

c: \(43-x=20\)

=>\(x=43-20\)

=>\(x=23\)

f: \(-14-\left(34-x\right)=40\)

=>\(-14-34+x=40\)

=>\(x-48=40\)

=>x=40+48=88