Question

Solve the simultaneous equations 3 − = 7 ; + 4 = 11 using Cramer’s

rule.​

Answer 1

Answer:

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Step-by-step explanation:

Solve the simultaneous equations 3x-y=7, x+4y=11 using Cramer's rule.

D=|a1b1a2b2|=|3-114|=3×4-(-1)×1=12+1=13.

Dx=|c1b1c2b2|=|7-1114|=7×4-(-1)×11=28+11=39.

Dy=|a1c1a2c2|=|37111|=3×11-7×1=33-7=26.

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