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overtonka
Solve each system of equations by substitution -5a+c=-30 4a-5c=24
take the 1sr equation and solve for c --add 5a to both sides c= 5a-30 after rearranging now we know c replace c with 5a-30 4a-5(5a-30)=24 4a-25a + 150 = 24 you should have it from here