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Sidana [21]
3 years ago
6

Prove that if -5(x + 4) = 70, the x = -18. Write a justification for each step.

Mathematics
2 answers:
babunello [35]3 years ago
6 0

Answer:

x=-18

Step-by-step explanation:

-5(x+4)=70

x+4=-14

x=-14-4

x=-18

crimeas [40]3 years ago
5 0

Step-by-step explanation:

Let's solve your equation step-by-step.

−5(x+4)=70

Step 1: Simplify both sides of the equation.

−5(x+4)=70

(−5)(x)+(−5)(4)=70(Distribute)

−5x+−20=70

−5x−20=70

Step 2: Add 20 to both sides.

−5x−20+20=70+20

−5x=90

Step 3: Divide both sides by -5.

−5x

−5

=

90

−5

x=−18

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