3x + -5 = 19 is a two-step equation where you would have to add and divide to solve. One more step could be combining like terms:
3x + -5 - 19 =0
OR
2x + -5 + x = 19
OR an additional third step could be square root.
(3x + -5)^2 = 19^2
OR an additional third step could be square it.
sqrt(3x + -5) = sqrt(19)
Answer:
Step-by-step explanation:
The expression 3x + (-5) = 19 is actually an equation, not an expression. To solve this, we calculate the value of x that makes this equation true.
1) Start by adding 5 to both sides: 3x + (-5) + 5 = 19 + 5. We get 3x = 24
2) Divide both sides of this result by 3 to isolate x: x = 8
3) Check this result. If we substitute 8 for x in the original equation, is the resulting equation true? Yes: 3(8) + (-5) = 19
