Question

Verify that 5/-7 + 7/5 + -3/2 = 7/5 + -3/2 + 5/-7

Answer 1

Answer:

L.H.S = R.H.S

HENCE VERIFIED

Go through the attachment hope it helps

Answer 2

Answer:

(-57)/70

Step-by-step explanation:

Simplify the following:

=5/(-7) + 7/5 - 3/2

Multiply numerator and denominator of 5/(-7) by -1:

=(-5)/7 + 7/5 - 3/2

Put (-5)/7 + 7/5 - 3/2 over the common denominator 70.

= (10 (-5))/70 + (14×7)/70 + (35 (-3))/70

=(-50)/70 + 98/70 + (-105)/70

= (-50 + 98 - 105)/70

=(98 - (50 + 105))/70

=(98 - 155)/70

=(-(155 - 98))/70

Answer:

(-57)/70 ---------- (a)

Again

Simplify the following:

=7/5 - 3/2 + 5/(-7)

Multiply numerator and denominator of 5/(-7) by -1:

=7/5 - 3/2 + (-5)/7

Put 7/5 - 3/2 - 5/7 over the common denominator 70.

= (14×7)/70 + (35 (-3))/70 + (10 (-5))/70

=98/70 - 105/70 - 50/70 = (98 - 105 - 50)/70

=(98 - 105 - 50)/70

=(98 - (105 + 50))/70

=(98 - 155)/70

=(-(155 - 98))/70

Answer:

(-57)/70 ------------ (b)

so, (a)=(b)

hence verified.