Hi,

I am after the answer to the following equation with all lines of working out please.

7m(m+z) - 3(5m-2z)

A father that has not done this type of equation for a long time trying to help his son !!

Thank you.

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- Mar 19th 2011, 03:19 PMRoughlsAlgebra Equation
Hi,

I am after the answer to the following equation with all lines of working out please.

7m(m+z) - 3(5m-2z)

A father that has not done this type of equation for a long time trying to help his son !!

Thank you. - Mar 19th 2011, 03:24 PMtopsquark
- Mar 19th 2011, 03:50 PMRoughls
- Mar 19th 2011, 04:13 PMtopsquark
$\displaystyle 7m(m+z) - 3(5m-2z)$

Rewrite this as

$\displaystyle 7m(m+z) + (-3)(5m-2z)$

Distribute

$\displaystyle = (7m)(m) + (7m)(z) + (-3)(5m) + (-3)(-2z)$

Simplify

$\displaystyle = 7m^2 + 7mz + -15m + 6z$

Or

$\displaystyle = 7m^2 + 7mz - 15m + 6z$

At this point you would collect like terms. But there are none so you are done.

-Dan