How do you solve #a+ 3( 4a + 8) = 128#?
2 Answers
Jun 6, 2018
Explanation:
#"distribute and simplify the left side of the equation"#
#a+12a+24=128#
#13a+24=128#
#"subtract 24 from both sides"#
#13a=128-24=104#
#"divide both sides by 13"#
#a=104/13=8#
#color(blue)"As a check"# Substitute this value into the left side of the equation and if equal to the right side then it is the solution.
#8+(3xx40)=8+120=128=" right side"#
#a=8" is the solution"#
Jun 6, 2018
Explanation:
To solve this remember that something outside a parenthesis should be multiplied with each term inside the parenthesis.
Therefore
This gives