Question

Simplify 3(2x+4y-2z)+7(x+y-4z)

Answer 1

$3(2x + 4y - 2z) + 7(x + y - 4z)$
Remove parenthesis.
Distribute 3 and 7 through the parenthesis

$= 6x + 12y - 6z + 7x + 7y - 28z$
Collect the like terms by adding their coefficients.

$= 13x + 12y - 6z + 7y - 28z$
Collect the like terms by adding their coefficients.

$= 13x + 19y - 6z - 28z$
Collect like terms by calculating the sum or difference of their coefficients. Use addition and subtraction rules to calculate the expression.

$= 13x + 19y - 34z$