y = 3x + 4
2x + 3y = 10
Substitute 3x+4 for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.
A system of equations is given below:
y = 3x + 4
2x + 3y = 10
Which of the following steps could be used to solve by substitution? (4 points)
3x + 4 = 2x + 3y
2x + 3(3x + 4) = 10
2(3x + 4) + 3y = 10
3(y = 3x + 4)
(I don't understand this at all and I've read through the module multiple times. Could you please help?)
1 answer
1 answer