The difference between two numbers is 4. Three times the larger is 2 more than five times the smaller. Find the numbers.
2 answers:
Let x represent the larger number. Let y represent the smaller number. x-y=4 Given 3x=5y-2 Given Now we can just substitute; let x=4+y Substitute 4+y for x in the second equation: 3(4+y)=5y-2 12+3y=5y-2 -2y=-14 y=7 Substitute back (into BOTH equations to double check work). x, the larger number, is 11
Da numbers are x and y lets say x>y differebec between x and y is 4 x-y=4 3 times the larger is 2 more than 5 times the smaller 3 times x is 2 more than 5 times y 3x=2+5y ok so we gots x-y=4 and 3x=2+5y hmm in the first one we can solve for x and subsitute x-y=4 add y to both sides x=y+4 subsitute y+4 for x 3x=2+5y 3(y+4)=2+5y distribute 3y+12=2+5y minus 3y both sides 12=2+2y minus 2 both sides 10=2y divide 2 both sides 5=y subsitute back x=y+4 x=5+4 x=9 the numbers are 9 and 5
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