One angle is five less than three times the measure of another angle together they have a sum of 143
1 answer:
x(angle1)+(3x-5)(angle 2)=143(sum of both angles).
x+3x-5=143
combine like terms: 4x-5=143
add 5 to both sides: 4x=148
divide both sides by 4: x=37
substitute for x: angle 1=37, angle 2= 106
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