What do you need to FIND?.07a + .05c = 630
a + c = 10000
Two common ways to solve such a system of equations are to solve one equation for one variable and substitute in the other; and to multiply one equation by something so that adding them together will eliminate a variable..07a + .05c = 630
a + c = 10000
Thank you , Substitution Method now is hard for me(Hi jtedesco. Here's a video link that shows some worked examples, using the Substitution Method for solving a system of two linear equations. Follow along, using paper and pencil. (If you see anything that you don't understand, then please ask.)
My hope is that you'll understand enough to try the Substitution Method with your system of equations. If so, post how far you got. Thanks!
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Please start a new thread with your assignment/problem - showing your work.Thank you , Substitution Method now is hard for me(
If one multiples .03x by 100 the result is 3x..07a + .05c = 630
a + c = 10000