5a-2b = 4; a + 8b = 26 solve simultaneous equation
Answers
Answered by
1
Answer:
a=2,b=3
Step-by-step explanation:
5a-2b=4___(1)
a+8b=26____(2)
solving both equations
5a-2b=4
5a+40b=130(equation 2 multiplying with 5)
_______
-42b=-126
b=(-126)/(-42)
b=3
substituting b value in equation 1 we get
5a-2(3)=4
5a=4+6
5a=10
a=10/5
a=2
Answered by
1
Answer:
a+8b=26
5a-2b=4
multiply 5 to (a+8b)
so,
5a+40b=130
5a-2b=4
subtract (sign change)
38b=126
b=3.31
a+8b=130
a+8*3.31=130
a+26.48=130
a=130-26.48
a=103.52
Step-by-step explanation:
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