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29-09-2016
Mathematics

Answered

Solve this system of equations using the addition method.

4a - 5b = 7

4a + 5b = 17

type the correct answer in ordered pair form

Verified Answer :

794238631 794238631

29-09-2016

eqt 1 = 4a-5b=7
eqt 2 = 4a+5b=17
eqt1+eqt2= 8a=24
a=3 then 4*3-5b=7
so b=1

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