Question

anyone up.. algebra

Answer 1

ok

Answer 2

A system of equations is given below:

y = 4x − 3
2x + 7y = 41

Which of the following steps could be used to solve by substitution?

2(y = 4x − 3) + 7y = 41
4x − 3 = 2x + 7y
2x + 7(4x − 3) = 41
2(y = 4x − 3)

Answer 3

@DanJS

Answer 4

yeah, substitution means you solve one equation for a variable, and substitute that into the second equation as to reduce the variables down to 1 to solve for...

Answer 5

Here they have the first one already solved for a variable y.

y=4x-3

You put that value for y into the second equation wherever y is at
2x + 7y = 41

2x + 7*(4x - 3)=41

Answer 6

ohhhhh that makes so much sense

Answer 7

thank u

Answer 8

welcome

Answer 9

third one down ? (direct substitution)