Answer:
x=35/4
Step-by-step explanation:
S1- Divide both sides of the equation by the same term
-2100=-240x
-2100/-240=-240x/-240
S2- Simplify
DIvide #
Cancel terms
Move the variable to the left
x=35/4
Answer:
31
Step-by-step explanation:
Using PEMDAS we know that you start with parenthesis, which would give us twenty within the brackets. Then you would solve for the exponent, which would give you sixteen but you do not add the exponent to the parenthesis until you divide. 100 divided by 20 is five, then you add ten and sixteen, giving you 31.
Its just a matter of subbing
-7x - 4y = 6....subbing in (-2,2)...x = -2 and y = 2
-7(-2) - 4(2) = 6
14 - 8 = 6
6 = 6 (correct)
so ur solution is (-2,2)
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